There's also an IMAX 3D version. IMAX used to be filmed on 4x larger film stock, but now that everything is digital, I'm not sure if the IMAX version is differe

There's also an IMAX 3D version. IMAX used to be filmed on 4x larger film stock, but now that everything is digital, I'm not sure if the IMAX version is different than the standard 24FPS version.