brash_stryker said:
I really want the Tantive to be on Dagobah when Padme gives birth, but I don't want it to be obvious to first time watchers that that's what she's doing. Maybe I'm asking for a lot, but I'm hoping for a solution where it'll be clear to those who know about Luke and Leia being Vader's kid, but not to first time viewers.

If we can not see the birth but instead hear Padme's screams, and then cobble together a line like "they should be seperated" then I think it could work.

For first time viewers, "they" would mean Anakin and Padme. For those who knew she gave birth, it would be clear what "they" meant.

Edit: Just checked. Yoda says "Split up, they should be". I don't think this is ambiguous enough as it is to make new audiences think it refers to Anakin and Padme, but it's something to work with.

Just a rough idea:

Cut to outside the Tantive on the surface of Dagobah.
Padme screaming.
Padme: Obi Wan, there is still good in him. etc
Yoda: Split up they should be. Hidden. Safe.
Senator Organa: We will take her. (or something similiar)
Wipe to next scene.

All those the pieces of dialogue would work for what you're suggesting....However, be careful, as many of these scenes have different music cues in the background.. That's the only thing I can think of that would make the cutting obvious. I don't have the movie in front of me, so I don't recall what cues are playing, if any.... But the prequels are music heavy so the odds are there is music in the background.