Best movies that are oscar winners in special achievement award category

Actors : Alec Guinness, Mark Hamill, Carrie Fisher, Harrison Ford,
Directors : George Lucas,

Luke Skywalker joins forces with a Jedi Knight, a cocky pilot, a Wookiee, and two droids to save the galaxy from the Empire's world-destroying battle-station, while also attempting to rescue Princess Leia from the evil Darth Vader.

Actors : Tim Allen, Jim Varney, Tom Hanks, Don Rickles,
Directors : John Lasseter,

A cowboy doll is profoundly threatened and jealous when a new spaceman figure supplants him as top toy in a boy's room.

Actors : Joanna Cassidy, Bob Hoskins, Christopher Lloyd, Charles Fleischer,
Directors : Robert Zemeckis,

A toon-hating detective is a cartoon rabbit's only hope to prove his innocence when he is accused of murder.