Mark Hamill sends Daisy Ridley birthday wishes on Twitter along with piggyback photo
The photo is reminiscent of a scene from The Empire Strikes Back when Luke carried Yoda during Jedi training.
Star Wars 8: Adam Driver raves about great script, calls director Rian Johnson 'intelligent'
Star Wars: Episode VIII will premiere on 15 December 2017.
Star Wars 8: Leaked scene description hints at grim fate of General Leia Organa
Episode VIII of Star Wars will be directed by Rian Johnson and will premiere on 15 December in 2017.
Star Wars Episode VIII set photos showcase unfamiliar-looking Croatia locations
Next Disney and Lucasfilm instalment is currently being filmed in Dubrovnik.
Star Wars 8 title leaked? Kylo Ren's Darth Vader influence may be vital in The Force Awakens sequel
The eighth and ninth instalment of Star Wars will be directed by Rian Johnson.
Star Wars 8: How Kylo Ren's backstory is important for The Force Awakens sequel
The untitled Star Wars movie is scheduled to premiere in December 2017.
Star Wars: Episode VIII - Benicio del Toro confirmed as cast member while Laura Dern joins sequel
The announcement also includes a special video centred around Mark Hamill's Luke Skywalker.
Disney delays release of new Star Wars movie
Episode VIII will now be released on 15 December 2017, seven months later than expected.
Star Wars: JJ Abrams opens up about Episode VIII, The Force Awakens' success and Rey's family
Meanwhile, John Boyega has revealed that Rian Johnson's next instalment will be 'much darker'.
The Force Awakens: JJ Abrams wants Ava DuVernay to direct an upcoming Star Wars movie
'I think would just kill it,' the sci-fi director recently admitted.
Star Wars - Episode VIII: Benicio Del Toro officially confirms his role as villain
Inherent Vice actor will star with The Force Awakens' Oscar Isaac in the Rian Johnson-directed sequel.
Star Wars: Episode VIII: Orphan Black's Tatiana Maslany in running for lead role
The Emmy-nominated star is one of three actresses on the shortlist for the female lead role.