Porky's Tire Trouble

Porky's Tire Trouble is a 1939 cartoon.

Plot
Porky works at the Snappy Rubber Company. His dog named Flat Foot Flookey, wants to follow him into work, despite the store not allowing dogs. Flookey is also a clumsy dog, so sneaking in will not be easy for him. In the process Porky falls into a vat of rubberizing solution, and gets turned into several then movie stars. Plus Porky's boss (A walrus) drops several tires.