Since I uploaded my recent films shot on the Canon 5DmkII in 2.35:1 on vimeo without borders I have been asked how to do it. So here as promised is the simple tutorial with thanks to Kevin Shahinian.
Framing wise for 2:35 to 1 you can either mark tape on the LCD or do what I do and guesstimate! That is where the very usual matte effect built into FCP comes in handy. The Widescreen matte is very cool as it lets you set the matte to what you want then simply shift the image within that matte to make the framing work for you. Watch the video to learn more.