A lightsaber used by Darth Vader in the "Star Wars" movies "The Empire Strikes Back" and "Return of the Jedi" sold Thursday for nearly $5 million in an auction.

The prop, used in the climactic duel between Vader and Luke Skywalker in "The Empire Strikes Back" where he tells Skywalker "I am your father," was among the highlights of the Ultimate Star Wars Auction on Nov. 12.

Big picture view: The lightsaber sold for $4. 875 million at the auction held by Heritage Auctions.