London's Leicester Square is to host a day-long celebration for the premiere of the final Star Wars film, including a marathon showing of all six movies.
Stormtroopers will be "on guard" during the event
The square will be transformed on 16 May as it gears up for the UK premiere, attended by director George Lucas.
An army of stormtroopers will be "on guard" in the area all day, while the Royal Philharmonic Orchestra will give a free concert of Star Wars music.
Tickets for the movie marathon go on sale on 25 April, priced £50.
Those who buy a "galactic passport" will be able to see one of the first showings of Episode 3: Revenge of the Sith at the Empire cinema.
The premiere of the movie will be at the Odeon cinema, attended by stars of the film including Hayden Christensen, who plays Anakin Skywalker, Anthony Daniels, who is C-3PO, and Chewbacca actor Peter Mayhew.
'Fun and excitement'
Leicester Square is the hub of the UK cinema industry, with most major premieres staged in the landmark area.
"Revenge of the Sith is a remarkable movie, and this extraordinary celebration reflects the fun and excitement that are the hallmarks of Star Wars," said the movie's producer, Rick McCallum.
"The Star Wars movies have a strong connection to the United Kingdom, so it's very fitting to hold this one-of-a-kind event here in London."
Fans will also be able to buy tickets for individual screenings of the previous five movies throughout the day.