Instantly recognizable items from 'Star Wars' movies, 'Back to the Future Part II,' 'Gladiator,' and more are in the Propstore sale expected to gross over $13 million.

An original 1977 Stormtrooper helmet from the “these are not the droids you’re looking for” scene in Star Wars is among over 1,800 pieces of movie and TV memorabilia that will be offered in a November auction in London.

Other sale highlights include Michael Keaton’s display batsuit in 1992 film Batman Returns, which is expected to fetch between £100,000 and £200,000

A screen-matched Star Wars Stormtrooper helmet could fetch up to £500,000 (€595,000) at an entertainment memorabilia auction in London.

A Star Wars Stormtrooper helmet could fetch up to £500,000 at an entertainment memorabilia auction in London. More than 1,800 lots will be sold during Propstore’s TV and film auction including the helmet,