A Bunch of Amateurs (2008)

Jefferson Steel, a washed-up Hollywood action star, is desperate to revive his flagging career. When his sleazy agent signs him up for what he believes is a high-profile Royal Shakespeare Company production of King Lear at Stratford upon Avon, Steel thinks he has finally landed the plum role he has been waiting for. However, he soon discovers that he has been tricked into joining an amateur dramatics group for a charity production.