Scaredy Cat (1948)

Here's a Saturday morning cartoon with some comical horror.

Scaredy Cat is a 1948 Merrie Melodies cartoon, directed by Chuck Jones and produced and released by Warner Bros. Pictures. It's the first film in which Sylvester received his now-official name.

In Scaredy Cat, Porky and Sylvester spend the night in an old dark house, whose horrors only Sylvester sees. His repeated attempts to save Porky from the ghoulish doings of the killer mice infesting the place (one wearing an executioner's hood and carrying an axe) only make the skeptical Porky all the more convinced of Sylvester's cowardice.

This is the uncut/unedited version.