Back in Action' director Seth Gordon tells PEOPLE in an exclusive interview that Jamie Foxx was Cameron Diaz's 'biggest cheerleader' as she returned to acting with her first movie in more than a decade.

The Holiday star appears in a new spy thriller - Back in Action - released this month, with actor Jamie Foxx, who she credits with her decision to return to the big screen. Appearing on BBC One's The Graham Norton Show, Diaz said she was not yet sure if her return to acting would be permanent.