Carrie Fisher Hijacks 'Star Wars' Premiere Curses Up a Storm

12/14/2015 7:49 PM PST

Carrie Fisher seized control of the red carpet livestream during the premiere of "Star Wars: The Force Awakens" ... and it was everything you could have hoped for.

Fisher went a tad off script, as she tried to hurl questions at fellow co-star Oscar Isaac at the Chinese Theatre in Hollywood ... bringing up her hard partying days, and ending with a barrage of curses.

We've missed you, Princess Leia.