“Ideally, this is something shown at festivals so I’m thinking of a big projector and how that might look. Also, if I toggle that timeline characteristic between 1080 and 720 with a full project when I’m done…would that screw up keyframing and other filters or can I do that without concern?”
Given the large-format delivery, I’d be inclined to take the hit on scaling up the 720 footage during edit – assuming your projection is 1080 (it may not be). That way, all of your 1080 footage will look cleaner. If you deliver a 720 file, everything will be a bit soft.
Changing size during or after the edit could affect your keyframing, since those values are numerical and based on the current value… let’s say you set some text -200 pixels from center at 720. If you change the frame size, your -200 isn’t going to be where you expect at 1080.
Doug Metz
Anode