Minnie's old friend, Mortimer Mouse, drops in on Mickey and Minnie's picnic. His practical jokes and coming on to Minnie soon have Mickey stewing, and their car isn't happy either. When Mortimer gets a nearby bull enraged and takes off, the car comes to the rescue after Mickey gets tangled up in a red blanket.
Unfortunately the movie Mickey's Rival is not yet available on HBO Max.
| Directing | Wilfred Jackson | Director |
| Visual Effects | Dick Huemer | Animation |
| Visual Effects | Clyde Geronimi | Animation |
| Visual Effects | Frenchy de Trémaudan | Animation |
| Production | Walt Disney | Producer |
| Writing | Earl Hurd | Story |
| Writing | Vernon Stallings | Story |
| Sound | George Lowerre | Sound Engineer |
| Directing | Graham Heid | Assistant Director |
