sentences:  To promote their films and attract larger theater audiences, motion picture chains in the 1930s provided many features to supplement the main feature, including travelogues, serials, short comedy subjects, newsreels and cartoons.During the late 1920s, Walt Disney Productions had achieved huge popular and critical success with their "Mickey Mouse" cartoons for Pat Powers' Celebrity Pictures (distributing for Columbia Pictures).Several other studios, Metro-Goldwyn-Mayer among them, took note of Disney's success and began to look for ways to get Disney or compete.