The film opens with Bosko taking a bath while whistling "Singin' in the Bathtub". A series of gags allows him to play the shower spray like a harp, pull up his pants by tugging his hair, and give the limelight to the bathtub itself which stands on its hind feet to perform a dance.
You can now watch Sinkin' in the Bathtub online on the following streaming providers in the United States.
| Directing | Hugh Harman | Director |
| Directing | Rudolf Ising | Director |
| Visual Effects | Norm Blackburn | Animation |
| Writing | Friz Freleng | Story |
| Production | Hugh Harman | Producer |
| Production | Rudolf Ising | Producer |
| Production | Leon Schlesinger | Associate Producer |
| Sound | Frank Marsales | Original Music Composer |
| Visual Effects | Friz Freleng | Animation |
| Visual Effects | Rollin Hamilton | Animation |
| Visual Effects | Hugh Harman | Animation |
| Visual Effects | Rudolf Ising | Animation |
| Visual Effects | Carman Maxwell | Animation |
| Visual Effects | Paul J. Smith | Animation |
| Visual Effects | Robert McKimson | Animation |
