"Star Wars: Episode VIII" star Carrie Fisher took to Twitter with a picture of her set chair, which bears the title "Space Bear: Episode VIII" and confirms the film's production name. The photo also features Fisher's dog Gary. Principal photography officially began on the project last week.

Written and directed by Rian Johnson, the sequel also features returning cast members Mark Hamill, Carrie Fisher, Adam Driver, Daisy Ridley, John Boyega, Oscar Isaac, Lupita Nyong’o, Domhnall Gleeson, Anthony Daniels, Gwendoline Christie and Andy Serkis. Benicio del Toro, Laura Dern and newcomer Kelly Marie Tran will also appear.

“Star Wars: Episode VIII” opens Dec. 15, 2017.

Y⛎®♑️❔❕ pic.twitter.com/Y3eyMSb48z

— Carrie Fisher (@carrieffisher) February 19, 2016