Douglas Trumbull's 'Showscan' fprmat shot and projected 70mm film at 60 fps. The huge cost kept it from succeeding, though the visual impact was supposed to be amazing.

Cameron's proposal will introduce similar perceptual problems to HD video - fake stuff will look more fake, every tiny detail of a performer's face will be apparent, and scenes that play a certain way at 24fps might fall flat at 60. One study showed that physical comedy was funnier in low res/low frame rate, and the same action looked painful to the audience in greater definition and detail.

I'll watch a good story in any format, thanks.