Well if its based off of Dragon Ball and not Dragon Ball Z, I think there is more opportunity for a solid movie. The original DB > DBZ/GT and whatever by a mile.
yeah I dunno, I enjoyed GT the most
GT worked better as an animation because it was a made-for-TV series, even if "Super Saiyan 4" was beyond ridiculous. (3 was pushing it) I really enjoyed the Super Android 17 and Baby sagas, but the ending Dragon saga was blah.
Dragonball (And "Z") in manga form is where it's at. Fucking awesome all the way through and doesn't drag on. BTW watch the final Dragonball movie, which is a remake of the original DB storyline using GT-style animation. Best movie by far.