Picador Porky is a 1937 cartoon starring Porky Pig. Directed by Tex Avery. This is the very first cartoon to feature the voice of Mel Blanc he performs the voices of Porky's friends when they get drunk and several incidental characters.
Porky and his too friends find themselves in a Mexican town. It just so happens that this the same day as the annual bull fight. They are told that the winner will get $1000. They decide that Porky will be a bullfighter and his two friends will be the bulls. When Porky enters the ring he doesn't fight his friends, but a real bull.