Five thousand Star Wars fans crammed into London's Leicester Square on Monday night for the UK premiere of the final instalment, Revenge of the Sith.
They braved the rain and lined the red carpet to catch a glimpse of director George Lucas who was greeted with massive cheers from the crowd.
The premiere, also attended by Hayden Christensen and Ewan McGregor, ended a day of celebrations in London.
Episode III, the last in the six-part series, opens in the UK on Thursday.
George Lucas praised the excited crowd for being "much louder" than fans at the Sunday's European premiere in Cannes.
Mr Lucas said he was glad he had completed all six films now: "It's the end of an era - 30 years I've been doing this."
Hayden Christensen also thanked fans for turning up, some of whom had been waiting 24 hours, and described their enthusiasm as "dedication at its finest".
Earlier on Monday 1,300 fans attended a movie marathon in a cinema in Leicester Square, where they watched all six films back to back.
Other cinemas also showed individual episodes of the space saga.
Throughout the day special events were put on for fans, including public interviews with actors Christopher Lee, Anthony Daniels and Jeremy Bulloch.
And the Royal Philharmonic Orchestra put on a special performance of the Star Wars music.