Could be better
The animation wasn't exactly top-notch. There were quite a few still frames and recycled movie clips, it seemed. The Monsters Inc. one had pretty good detail, though it was just a few tweens.
It was sorta funny, though I haven't seen most of the movies in here. I liked the use of that excited Link meme thing (forgot the name) and the ghost's rhymes about mundane activities. The Advent Children thing was pretty alright, too.
As for the voice acting, if you aren't confident about doing convincing voices, I'd recommend checking out the Voice Acting Club. If not to get someone else to do voices, you could get some tips and critique there.