I was looking at IMDB and it says that Mick is in a 2011 movie called
Get a Job.
He plays an unemployed band member.
http://www.imdb.com/title/tt1645754/fullcredits#cast
Willie Nelson ... Wedding Band Member
Mick Fleetwood ... Unemployed Band Member
Carolyn Omine ... Laura
Eric Gilliom ... Merton
Jake Shimabukuro ... Gameboy
Patrick Simmons ... Unemployed Band Member
Augie Tulba ... Cousin Bully
Henry Kapono Ka'aihue ... Laura's Dad
Willie K. Kahaiali'I ... William