poll for the peanut gallery

So, Rifftrax has opened a feature where you can riff your own movies, which I think we can all agree is the most awesome thing since X-TREME SLICED BREAD, and being as I never shut up during movies (as I'm sure most of you have noticed), I think it would be fun to try to do one. The question, of course, is what movie should I pick?

The criteria:
- Rifftrax hasn't already done it
- movie is easily available (i.e. on Netflix)
- movie must not make me want to shoot myself in the head (so not Alexander)
- movie must be mockable but preferably fun

Any suggestions? So far I'm thinking King Arthur but if you have a better idea, let me know.