http://www.youtube.com/watch?v=fb50GMmY5nk&feature=player_embedded (so how many movie references/nods could you count?)
There's quite a few more too, and I'm sure I'm not getting everything (including some that may only be sound, not visual). He-Man, Stargate, the Mummy (pretty sure), Pitch Black, Aliens, etc are in there too. It's quite well done, although my favorite is still Vin Diesel's 'Rid****' character as Panthra.
I would never imagine I would see the Thundercats as a movie...but to be honest with a Smurfs real-action movie in the mix, I wouldn't be surprised.