Mark Hamill and Daisy Ridley have teamed up with Disney and Lucasfilm's charitable initiative, Star Wars: Force For Change and Omaze, to help promote its new fundraising campaign marking the 40th anniversary of Star Wars, with proceeds going to UNICEF and Starlight Children's Foundation.

The campaign allows fans to enter a competition to win once in a lifetime prizes, including an appearance in the upcoming Han Solo film, tickets to the world premiere of Star Wars: The Last Jedi, and an overnight stay at Skywalker Ranch. Entrants can apply via omaze.com/starwars, until May 11.