List of unreleased Warner Bros. animated shorts

Following is the list of the Looney Tunes and Tom and Jerry animated short subjects proposed by either Warner Bros. Cartoon studio in the 1930s-1960s or Warner Bros. Animation in the 2000s. In 1945, Bob Clampett planned to direct a Looney Tunes cartoon that would fictionalize the life of Franklin D. Roosevelt as a dog but when Roosevelt died the project was abandoned. In the 1950s, Friz Freleng pondered the idea of a one-shot cartoon that would combine Marilyn Monroe's life with the fairytale of Snow White but this project was also shelved when it was deemed too similar to Monroe's own personal life. Not all abandoned Looney Tunes shorts were one-shots as Looney Tunes comprises several sub-series such as Bugs Bunny, Pepe Le Pew and the Road Runner, to name few. It is no surprise that not all planned sub-series didn't get off the ground, and many of them ended up either not being produced at all or being reworked into one-shots. Some of these sub-series were Keystone Kops, Rapid Rabbit and Quick Brown Fox, Corn Plastered, The Eager Beaver, Canyon Kiddies, etc. None of these went so far as to have individual titles mapped out.

In 2003, Warner Bros. Animation had plans to return to making Looney Tunes shorts but after the box office failure of Looney Tunes Back in Action, Warner Bros. canceled several short projects while still in development as executives saw that interest in slapstick humor and traditional animation was vanishing. Most of these cartoons were in production under the hands of Larry Doyle in terms of Looney Tunes/Merry Melodies shorts and Joe Barbera in terms of Warner Bros. and the popular cat-and-mouse duo, Tom and Jerry.

Looney Tunes & Merrie Melodies - 19 titles

 * It is unknown who directed the following Looney Tunes and Merrie Melodies
 * LT = Looney Tunes
 * MM = Merrie Melodies

Tom & Jerry shorts - 9 titles

 * All Tom and Jerry cartoons were directed by either Joe Barbera or Spike Brandt (albeit the latter shorts were actually completed without the participation of either of the two) and also completed as part of Tom & Jerry Tales.