Sotheby's to sell rare Star Wars items on eBay soon

A Luke Skywalker doll for $18,000. A Darth Vader helmet or a cuddly Yoda for $100. Star Wars fans will dig deep to splash their cash on some of the rarest merchandise on the planet.

More than 600 items will go on sale in an online auction organized by Sotheby's and eBay at 1 am on Saturday, Beijing time - one week before the release of Star Wars: The Force Awakens, the seventh movie in arguably the world's biggest film franchise.

The space epics have grossed billions of dollars at the box office worldwide since the first film came out in 1977 and spawned a pop culture phenomenon, drawing legions of hardcore fans.