Career: Jack got his big break in the 2000 film High Fidelity, in which he played a crazy record store shop assistant. That led to leading roles in films including Shallow Hal, School of Rock, King Kong and Gulliver’s Travels. He is also the lead singer for the rock comedy group Tenacious D. They have released two albums: Tenacious D and The Pick of Destiny.
Relationships: On 14th March 2006 Jack married his girlfriend Tanya Haden. They have two sons: Samuel “Sammy” Jason Black, born on 10 June 2006 and Thomas David Black, born on 23rd May 2008.
FYI: Jack is a member of the Frat Pack, a group of actors who frequently work together including Owen Wilson, Luke Wilson, Ben Stiller, Will Ferrell, Vince Vaughan and Steve Carell.