Worst? To be honest, I don't remember seeing a bad film. I usually squeeze all of its artistic merit out of it in order to enjoy it, rather than spend an hour plus watching something dreadful. Either that, or I leave too early in the film to remember any of it
Best? Every movie I've seen to date really. I don't particularly have a favourite, so I'll just recount the last few movies I've seen: The Incredibles, Spongebob Squarepants, and Meet the Fockers.
Alcar...