OK, I'll just say it for everyone: Games from Movies Suck!
I tried Happy Feet, and it was totally pointless. There are only three things that you can do:
1.Race on your gut down a randomly high mountian.
2.Swim to catch fish and hearts you never use.
3.Dance in a DDR style, but only with Wii Remote movements. The dancing was pointless. Half the time, move up didn't even work.
You do have some good movie games (StarWars, anyone?), but a lot are a load of B.S. (Really? Do they really need a game for any Dreamworks movies?).