While he did appear in a few films, his roles were small and often uncredited. Here are a few examples:
* "The Strip" (1951): He played a character named Slim in this film noir.
* "The Blues Brothers" (1980): Gaillard made a brief appearance in this classic comedy film.
* "The Big Beat" (1953): He performed his music in this film.
It's important to note that Slim Gaillard's primary contributions were in music and entertainment, not acting. His music was featured in several films and television shows, but he wasn't a regular fixture in those mediums.