The 1945 film "Anchors Aweigh" features Gene Kelly dancing with which cartoon mouse?

"Anchors Aweigh" is a 1945 American Technicolor musical comedy film directed by George Sidney and starring Frank Sinatra, Kathryn Grayson, and Gene Kelly, with songs by Jule Styne and Sammy Cahn. In the film, two sailors go on a four-day shore leave in Hollywood, meet a young boy and his aunt, an aspiring young singer, and the sailors try to help her get an audition at Metro-Goldwyn-Mayer.

In addition to a live-action Kelly dancing with Jerry Mouse, the cartoon mouse of the "Tom and Jerry" series, the film also features José Iturbi, Pamela Britton, Dean Stockwell, and Sharon McManus. Tom Cat has a brief cameo appearance as a servant of Jerry Mouse, the lonesome king.

Jerome A. Mouse is a fictional character and one of the two titular main protagonists (the other being Tom Cat) in Metro-Goldwyn-Mayer's series of "Tom and Jerry" theatrical animated short films. Created by William Hanna and Joseph Barbera, Jerry is a brown mute anthropomorphic house mouse, who first appeared as a mouse named Jinx in the 1940 MGM animated short "Puss Gets the Boot".