Thought I'd try shooting with 50i today, and I'm just curious about how 50i files at 1920x1080 should be handled.
AE reports the files as using the upper field, which is correct.
When you go to export, do I set both 'render settings' and the cineform export box to use upper/interlaced ?

It seems to be as though I want to do that but thought I'd check before testing anything out.