VIDEO : Mark Hamill was surprised by Rian Johnson on Star Wars: The Last Jedi

Mark Hamill couldn't believe how "amiable" Rian Johnson on the set of 'Star Wars: The Last Jedi'.
Hamill spoke recently about Johnson saying he was a collaborative person.
Being collaborative was something that surprised the veteran actor.
"I thought if anyone could be an arrogant SOB it was going to be someone that's found success that early on. I couldn't believe how self-effacing and amiable he was."