Blech
I don't have any flash posted here, mainly because they're all school-related and thus have to follow a boring outline, but here are some problems.
Newb mistake 1: As the guy said before me, shape tweening fonts is so cliché. Try to find a more creative way to do it.
Newb mistake 2: No sound compression? This movie could have been much smaller if you bothered to compress the music. Seriously, the quality of your music should be the last thing on your priority list.
Newb mistake 3: This one is a smaller one, but if you're doing a text-to-speech program (a necessity for CC movies, of course) and you come across a word that is pronounced differently than the program interprets it, you should spell the word FONETIKLY (phonetically)