

Since a couple of people have commented about Leia not being able to tell the difference between a giant 'mouth' closing, and a 'cave' collapsing, I thought I'd try and re-work the timing of her line a little, to see if it could be placed somewhere else. Again, you need to watch the 'movement' of the shots onscreen to get a proper idea.
(I'm fine with where her line "The cave is collapsing" is placed in the sequence currently, as I always thought that the young Princess just did not comprehend the fantastic notion that she (and the Millennium Falcon) could actually be inside some gargantuan living creature to begin with, and that whatever she was seeing was just so outwith the scope of her 'experience', that it just didn't 'register' with her that there was some 'giant maw' closing ahead in the distance.... I understand that some may not agree though.)
It's just speculation, but I'm interested to see if anyone thinks the following alternative sequence would have worked a little better for the placement of the line -
I'll describe the current sequence first, and then you can easily compare the alternative version to it, that comes afterwards. Before I start, I need to explain my own preferred view of where I see the Space Slug being 'positioned' in relation to the 'cave' opening that the Falcon flies into, in the first place -
I always think of it as resting a little ways down in the 'cave' when the Falcon flies through the 'opening' at first. (so of course, I'd prefer it if the 'white' entrance in the shot where the front 'bright, white' lights switch on, was just made into the 'cave' opening with a black starfield behind, by Adywan, rather than a 'mouth'at this point....and a tiny asteroid drifting/tumbling past it in the distance might be nice) I've always thought that the creature's 'open maw' was a little further down in the darkness at this point, and is only approached by the Falcon during the shot that comes after Leia says "I hope you know what you're doing", and Han replies "Yeah, me too".... (Note - it's the very 'dark area' that is to the left of where the mysterious 'white ball' used to appear. Adywan has now removed the 'white ball', if you look at his 'Luke approaching Dagobah' clip) - having said this, it could be neat if Adywan showed a slightly closer, more obvious (to us) 'open maw' in that area, as the Falcon heads down....
Anyway, I've always also thought that events then continued something like this - during a short interlude later in the movie, the stationary Falcon is briefly 'rocked' twice (due to the Space Slug moving forward a little), knocking Leia off-balance into Han's lap....before he continues to try sorting the Hyperdrive system. Then when we see the Falcon again, further on in the movie, the laserbolts of Chewbacca then Han, spur the Space Slug into a continuous 'rocking' motion forward towards the 'cave' opening, once again.... (Note - from when Han shoots down at the 'belly' of the Space Slug, up until the Falcon takes off, the sequence is shown in 'real-time' and lasts approx. 40 seconds - plenty of time for it to now have eventually reached very near the the 'cave' opening (from where it was deeper down before), to lunge outwards....)
I'll continue on from here with the current sequence in 7 shots as we know it -
Shot 1 - Han and Chewbacca enter the cockpit, with Leia just behind. (C3PO is still being 'rocked' just outside the cockpit somewhere) The door shuts behind Leia as she says "You can't make the jump to lightspeed in this asteroid field". Han immediately responds "Sit down sweetheart! We're taking off!"
We then cut to Shot 2 (which lasts approx. 2 secs.) - http://www.theforce.net/swtc/Pix/dvd/ep5/sslug1.jpg
From a viewpoint behind Han, Leia, and Chewbacca in cockpit, we see through the cockpit windows that the Falcon has taken off, and it swings around to it's left, where we see the tiny 'open maw' in the distance ahead of them. No words are spoken by anyone during this shot.... (Note - regardless of the fact that I think the Space Slug could 'extend' to quite a long 'length' as it moves forwards through it's 'cave'....I would like it's 'open maw' in the distance, to be a little closer during this shot, to better tie-in with the much closer viewpoint we see it from, in the next shot of it, a couple of seconds later. The Space Slug seems to be very long in this shot, and it doesn't need to be....if Adywan agrees that it was further down the 'cave' to begin with initially, as I described earlier)
We then cut to Shot 3 (which lasts approx. 2 secs.) -
We see a front 'close-up' of the crew now, as C3PO has appeared in the doorway of the cockpit and raises his arm saying "Look!", as the door shuts behind him, and Han immediately responds "I see it, I see it".
We then cut to Shot 4 (which last approx. 2 secs.) -
We are much closer to the 'teeth' now (shown in the screenshot above at top), as seen through the front of the cockpit windows, and we just hear C3PO say "We're doomed!", then just hear Leia say "The cave is collapsing"....(shown in the screenshot above in middle) (Question for Adywan - should we actually see a hint of the 'cave' opening anywhere, just ahead of the open 'teeth'?....to tie in with where it eventually emerges. Would we see any of the surrounding 'cave' opening from the Falcon's cockpit viewpoint or not, do you think? I'm not sure, although the 'cave' opening does seem a good bit wider than the size of the Space Slug's head. It might be nice to see a small asteroid or 2 drifting/tumbling past in the distant starfield, ahead of the teeth, in these shots though....)
We then cut to Shot 5 (which lasts approx. 2 secs.) -
We see a front 'close-up' of the crew again now, as Han says "This is no cave", and Leia immediately responds "What?". The door is still shut behind C3PO at the back. (why the door is important will become apparent in my alternative sequence)
We then cut to Shot 6 (which last approx. 2 secs.) -
We see a 'close-up' of the Space Slug's teeth almost closed together, as the Millennium Falcon just escapes in-between them. (shown in the bottom screenshot above)
Finally, we then cut to Shot 7 - http://www.theforce.net/swtc/Pix/dvd/ep5/sslug3.jpg
We see the Space Slug emerge from very near the top of the 'cave' opening, with it's 'chin' and left-hand side closest to the edge of the opening....as it opens it's mouth wide again, snapping once at the escaping Falcon, as it lunges outwards amidst some 'debris' from the 'cave'.
NOW HERE'S THE ALTERNATIVE VERSION.... (you need to allow for the fact that the 'positioning' of C3PO and the door opening would need to be amended properly!)
Shot 1 - Han and Chewbacca enter the cockpit, with Leia just behind. (C3PO is still being 'rocked' just outside the cockpit somewhere) The door shuts behind Leia as she says "You can't make the jump to lightspeed in this asteroid field". Han immediately responds "Sit down sweetheart! We're taking off!" (Note - this shot is exactly the same as before)
We then cut to Shot 2 (which lasts approx. 2 secs.) - http://www.theforce.net/swtc/Pix/dvd/ep5/sslug1.jpg
From a viewpoint behind Han, Leia and Chewbacca in cockpit, we see through the cockpit windows that the Falcon has taken off, and it swings around to it's left, where we see the tiny 'open maw' in the distance ahead of them. However, now we would hear Leia's voice saying "The cave is collapsing" during this shot....where the 'teeth' are further away in the 'distance' from her sight (and ours!) at this early point in the sequence (and is the main reason for coming up with this alternative scenario) - My previous comments about making the 'open maw' just a little closer at this point (in the current shot) would also apply here too, though.
We then cut to Shot 3 (which lasts approx. 2 secs.) -
We see a front 'close-up' of the crew now, but this time it is the one where Han says "This is no cave", and Leia immediately responds "What?" (However, where C3PO previously appears in the doorway of the cockpit as the door then closes behind him, at this point in the current sequence ....we now unfortunately have him slightly in front of a closed door)
We then cut to Shot 4 (which lasts approx. 2 secs.) -
We are much closer to the 'teeth' now (shown in the screenshot above at top), as seen through the front of the cockpit windows, but this time we only hear C3PO saying "We're doomed" before we reach the end of the shot. (shown in the screenshot above in the middle) - My previous question about whether we should see a hint of the 'cave' opening beyond the 'teeth' anywhere at this point (in the current shot) would also apply here too, as would my comment about having a small asteroid or 2 in the starfield beyond the teeth.
We then cut to Shot 5 (which lasts approx. 2 secs.) -
We see a front 'close-up' of the crew again now, but this time it is the one where C3P0 raises his arm saying "Look!", and Han immediately responds "I see it, I see it". (However, where C3PO previously stands just slightly in front of a closed door, at this point in the current sequence....we now unfortunately have him appearing in the doorway of the cockpit, as the door then closes behind him)
We then cut to Shot 6 (which lasts approx, 2 secs.) -
We see a 'close-up' of the Space Slug's teeth almost closed together, as the Millennium Falcon just escapes in-between them. (shown in the bottom screenshot above) (Note - this shot is exactly the same as before)
Finally, we cut to Shot 7 - http://www.theforce.net/swtc/Pix/dvd/ep5/sslug3.jpg
We see the Space Slug emerge from very near the top of the 'cave' opening, with it's 'chin' and left-hand side closest to the edge of the opening....as it opens it's mouth wide again, snapping once at the escaping Falcon, as it lunges outwards amidst some 'debris' from the 'cave'. (Note - this shot is exactly the same as before)
Done. :)