Just saw the trailer, great job!
Also, you know the new TRON Walt Disney castle at the start of Legacy? Well, the company behind it uploaded it on their site, see here: http://media.prologuefilms.com/movies/tron_logo_film.mp4
Also, if you're going to use the Legacy opening sequence as the opening for Liberty, do a voiceover of the prologue from the limited edition DVDs: http://www.youtube.com/watch?v=-D_ccGj7jgM