What item used by Darth Vader in "Empire Strikes Back" and "Return of the Jedi" sold for more than $3.6 million?

The item that sold for more than $3.6 million is Darth Vader's lightsaber. This iconic weapon is one of the most recognizable symbols from the Star Wars franchise and is closely associated with the character of Darth Vader. In the films "Empire Strikes Back" and "Return of the Jedi," the lightsaber plays a crucial role in defining Vader's character as a formidable Sith Lord.

The immense value of the lightsaber can be attributed not only to its significance in the Star Wars saga but also to the overall cultural impact of the franchise. As a piece of cinematic history, collectible items associated with beloved characters tend to attract high bids among fans and collectors alike. The rarity, provenance, and direct connection to a cultural icon like Darth Vader further enhance its desirability and market value.