Hi Raphael, thanks for all the feedback!
The 70's style BBFC certificates were originally made up in Gimp by forum member See No Evil - see the original discussion here. I'm afraid most of the detail was embedded in the background layer so I can't advise on the fonts nor offer the signatures as vectors, but if you'd like that template (or any of my Photoshop-based variants) drop me your email address via PM. The resolution as it stands is certainly good enough for HD work.
I've actually just finished this reel, but for what it's worth I think I've covered most of your requests - I'm a bit confused by your Pearl and Dean description though, the 'Towers' intro (as I used in the Alien intro linked above) is the pah-pah-pah-pah-pah-pah one, i.e. the good one!
Interesting question re. the Curzon. The Curzon I've used as the basis for this (somewhat stylised) image is an independent place I used to work at. I was using a recent photo for the signage but as this 1978 photo shows, it hasn't really changed all that much!
I'll report back once I've uploaded this somewhere for viewing. MKV and/or BD folder will also be available shortly - what's going to be useful to people?