I remember watching a 3D animated movie more than seven years ago ago.
It was about a boy or a young man who has a companion or pet of some kind (I think it was a robot maybe?) who goes into a portal that leads to an alien planet for some reason. I think it had something to do with his father. He ends up on a world with aliens much larger than him.
At one point, he is at a feast or something of the sort and is served a giant brain, to which he replies with something along the lines of "I'm allergic to anything above the neck... ears, tongues, and that includes brains", and that's all I can remember of that movie.