I thought Slumdog was crap aswell, thought i was the only one! Can't wait for Alice, going friday i think. The mixed reviews are good aswell because I'm always dissapointed when films are over-hyped.
I think when i saw Avatar in 3D it was odd, but i adjusted to it. At first (in the normal life scenes at the beginging) it began to hurt my eyes, but then when the alter-world of avatars kicked in i was fine. Thankfully, Wonderland is designed that way too, so i shouldn't have a problem.
Only 5 cineworlRAB in the UK are showing the film in 2d...3d is the only option..