Oscar Shorts Finder

The Two Mouseketeers is a 1952 American one-reel animated cartoon and is the 68th Tom and Jerry short, produced in Technicolor and released to theaters as early as January 27, 1952 by Metro-Goldwyn-Mayer. It was produced by Fred Quimby and directed by William Hanna and Joseph Barbera. The short is a spoof of Alexandre Dumas' 1844 novel The Three Musketeers and its film adaptations, featuring the mice Jerry and his best friend, Nibbles as the "Mouseketeers" trying to raid the French king's banquet table, which is protected by Tom as a guard.
— Wikipedia

Lambert the Sheepish Lion is a Disney animated short film that was released in 1952. It was directed by Jack Hannah.
— Wikipedia

Rooty Toot Toot is a 1951 American black comedy musical film noir cartoon directed by John Hubley. It was released by Columbia Pictures and produced by UPA. Annette Warren provides the voices of both Frankie and Nelly Bly. Thurl Ravenscroft is the voice of Johnny and Honest John the Crook. The film is an adaptation of the song "Frankie and Johnny", a murder ballad. In the song, a woman shoots her unfaithful lover. The film depicts her trial for murder. Her crooked lawyer manages to have her declared not guilty, and expresses an interest in marrying his client.
— Wikipedia