The Cocoanuts

In the Marx Brothers' first feature film, Groucho portrays a hotel owner out to fleece everyone, from innocent bellboys to wealthy society matron Mrs. Potter. Chico and Harpo play resort hotel con men, whom Groucho recognizes instantly when their suitcase pops open--empty. "We'll fill it up before we leave," Chico assures him.
When Mrs. Potter discovers that her jewels are missing, Chico and Harpo rescue falsely accused hotel clerk Bob Adams, find the jewels, trap the real perpetrators and unite Bob with his sweetheart Polly Potter.