Oh my! I used to be a reluctant when it comes to a book adaptation movie. But, here's a confession, I actually have seen "To Kill a Mockingbird", yes, the black and white movie :)
So I think it's no harm to watch another one. Especially one that is supposedly an 'unfilmable book' by Yann Martel.
Let me jot the reasons down:
The director is Ang Lee: Have you not seen the "Crouching Tiger Hidden Dragon"?
A 3D: I love being visually intrigued and entertained.
Tear jerking trailer: Obviously.