Mickey Mouse (originally known as Mickey Mouse Sound Cartoons) is a series of American animated comedy short films produced by Walt Disney Productions. The series started in 1928 with Plane Crazy and ended in 1953 with The Simple Things. Four additional shorts were released between 1983 and 2013. The series is notable for its innovation with sound synchronization and character animation, and also introduced well-known characters such as Mickey Mouse, Minnie Mouse, Pluto and Goofy. The name "Mickey Mouse" was first used in the films' title sequences to refer specifically to the character, but was used from 1935 to 1953 to refer to the series itself as in "Walt Disney presents a Mickey Mouse." In this sense "a Mickey Mouse" was a shortened form of "a Mickey Mouse sound cartoon" which was used in the earliest films. Films from 1929 to 1935 which were re-released during this time also used this naming convention, but it was not used for the three shorts released between 1983 and 1995 (Mickey's Christmas Carol, The Prince and the Pauper, and Runaway Brain). Mickey's name was also used occasionally to market other films which were formally part of other series. Examples of this include several Silly Symphonies and Goofy and Wilbur (1939). Production Disney began secretly producing the first Mickey Mouse films while still contractually required to finish some Oswald the Lucky Rabbit cartoons for producer Charles Mintz. The first two films, Plane Crazy and The Gallopin' Gaucho, were previewed in theaters but failed to pick up a distributor for a broad release. For the third film, Disney added synchronized sound, a technology that was still in its early stages at the time. Steamboat Willie debuted in New York in November 1928 and was an instant success. The revenues from the film provided the studio with much needed resources, and the studio quickly began to produce new cartoons as well as releasing sound versions of the first two. Production slowed towards the end of the 1930s as the studio began to focus on other characters and feature-length films. The series was informally retired in 1953 with the release of The Simple Things, but was revived in 1983 and 1990 with two featurettes, or three reel short films. 1995's Runaway Brain returned the series to its single reel format, while the most recent installment, 2013's Get a Horse!, was produced in the black-and-white style of the