Harrison Ford revealed that he's seen the movie and thinks it's "phenomenal", but skipped out on the premiere with the rest of the cast because he didn't want to steal Alden Ehrenreich's moment of glory.
Alden Ehrenreich brought his copy of the Millennium Falcon Owner's Workshop Manual to set to talk about button sequences for a take off scene on the Falcon.
Dryden Vos' facial stripes were added in post-production. According to Paul Bettany, he didn't know about it until he saw a photo Ron Howard sent to him.
This is the first Star Wars film (in official canon) where nobody speaks the word "Jedi."
Han speaks to Chewbacca in the Wookiee language. It's the first time a non-Wookiee speaks the language, and the first time the language is translated on-screen with subtitles.
Clint Howard: the brother of director Ron Howard appears as the master during the robot cage fighting scene. Clint makes frequent cameos in Ron's movies.