Complex sentence: Her next film, "Blunt Force Trauma", a Colombian production where she co-starred with Mickey Rourke, premiered at the Woodstock and Montreal World Film Festivals in September 2015.
Split into simpler sentences: Her next film was the Colombian production "Blunt Force Trauma", in which she co-starred with Mickey Rourke. The film premiered at the Woodstock and Montreal World Film Festivals in September 2015.