Frank is a 2014 comedy-drama film directed by Lenny Abrahamson, it stars which Irish actor, and his feature film debut was in the fantasy war epic "300" (2007) as a Spartan warrior?
Frank (film):  It stars Michael Fassbender, Domhnall Gleeson, Maggie Gyllenhaal, Scoot McNairy, and François Civil. Michael Fassbender: Michael Fassbender (born 2 April 1977) is an Irish actor.
Michael Fassbender