Blue Cavern

Check out this link for an interview with director Raja Gosnell and producer Jordan Kerner.

Says they're already writing the sequel, and the DVD has a 22-minute animated special, involving some old-school, 2-D animation!

A little to early to get excited about a sequal but it means the expect a hit. The 22 minute thing could be a Christmas special on tv if the movies a hit I would guess.