Hollywood special effects continued to develop in a manner that largely avoided cel animation, though several memorable animated sequences were included in live-action feature films of the era. The most famous of these was a scene during the movie "Anchors Aweigh", in which actor Gene Kelly danced with an animated Jerry Mouse (of "Tom and Jerry" fame). But except for occasional sequences of this sort, the only real integration of cel animation into live-action films came in the development of animated credit and title sequences. Saul Bass' opening sequences for Alfred Hitchcock's films (including "Vertigo", "North by Northwest", and "Psycho") are highly praised, and inspired several imitators.