The most recent movie I saw was Toy Story 3. I just wanted to take a minute to recommend that you all go see it. I'm not doing this because I make a general recommendation on all Pixar films (I do), but because this one was shockingly good. I was pretty upset when I found out they are doing more sequels (this one, followed by Cars 2), but of the three Toy Story movies I actually think this one is the best, especially for adults. The characters are TOTALLY consistent with their old selves, and the story has real tension and suspense!
I don't think it matters much if you see the 2D or 3D though. I found the 3D work to be sort of unremarkable, and I doubt anything would be lost in the 2D version. The POINT is the excellent story and the outstanding world building Pixar does.
I intend to go see Despicable Me sometime soon. It's no Pixar, but I have been hearing good reviews. My expectations are pretty low because I totally hated the trailers for it, but we'll see. I'll see it 2D as a matinee to avoid paying too much, but I'll try to remember to post about it if it's good.