Star Wars guru Yoda was based on Albert Einstein.

The 900-year-old Jedi Master - who taught Luke Skywalker to use "The Force" - was given wise features like the physicist's.

The truth about the tiny alien is revealed in a new DVD of the Star Wars trilogy, says The Sun.

A documentary on the DVD also tells how Skywalker was originally intended to be a midget and Han Solo a big green monster with gills.

Chewbacca was a cross between creator George Lucas's dog and the apes from 2001, A Space Odyssey.

The disc shows actor Kurt Russell auditioning to be Solo and reveals that Luke's lightsabre was made from a camera flashgun with no bulb


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