KILLER star Michael Fassbender is to star in an anti-establishment comedy about a controversial Irish language rap group from west Belfast. The Irish actor has been announced as the lead for an upcoming Kneecap biopic, which will be directed by Rich Peppiatt, who has also directed a music video for the band. Eponymously named KNEECAP, the film has been billed as a raucous, anti-establishment comedy and will star real-life band members Mo Chara, Móglaí Bap and DJ Próvaí as heightened versions of themselves.