You already know how this film ends, as its a prequel to Pixar's Monsters Inc., but how they get there is completely unexpected. While there are loads of characters in this film, you don't really get to know many of them, which is unfortunate. There are also nods to characters from the previous films, so you know where they came from. Its the story that disappoints, as after Wall-E, Up and Toy Story 3 this just doesn't cut it for a Pixar film and feels a little limp. The 3D does absolutely nothing for this film either, there aren't even any cheap tricks to wake you up like Despicable Me 2. Maybe it needs a repeat watch to catch all the in-jokes, but its Pixar by the numbers playing it safe. Kids as always will love it.