I have no depth perception so this is second hand, but the Film Forum in NY showed Kate a few years ago in 3-D, and the audience would oooohhh and aaahhh when something went at the camera. A few times they visibly flinched.
On the other hand I admired the shape of Howard Keel's behind in those tights. My, my. You don't need 3-D for such a fine manly shape as that.
"If my life weren't funny, it would just be true. And that would be unacceptable."
--Carrie Fisher