Movie Maniacs (1936)

Three ambitious stowaways hitch a ride in a train boxcar loaded with furniture, dreaming of Hollywood stardom. Upon reaching Carnation Pictures Studios, Fuller Rath, the studio's general manager, misinterprets a telegram about the arrival of "Mr. Smith and his two assistants." Believing the bumbling Stooges are the new executives, he grants them unfettered access to the studio. Chaos ensues as the trio wreaks havoc on a romantic drama's production, turning the film set into a comedic disaster while inadvertently showcasing their own slapstick antics.