Charles Mintz was unhappy with the production costs on Walt Disney and Ub Iwerks's "Alice Comedies," and asked the two to develop a new character.
Among its prized possessions is the first drawing of Mickey Mouse, by Ub Iwerks for the character's film debut in Plane Crazy (1928).
Oh, What a Knight is an Oswald the Lucky Rabbit an American animated short film directed by Walt Disney and Ub Iwerks, and released in 1928 by The Walt Disney Studio.
Alfred Hitchcock's The Birds (produced by Universal Studios) used yellow screen, under the direction of Disney animator Ub Iwerks, in traveling matte shots with birds' rapidly fluttering wings.