I've just checked the IMAX listing for an IMAX theater in London, and it says that its a 2D presentation.
So, should I just see it at my local ODEON cinema or will there be a noticable difference when seeing it on an IMAX screen?
A trip to London is normally about an hour for me so its not too bad. Plus, it would be my first trip to an IMAX cinema so it better be worth it.

(EDIT: If I see it at IMAX, should I bring earplugs for when they play the THX ident before the movie, lol? Its bound to have the THX ident play there. )