Complex sentence: Burke won the Best Actress award at the 1997 Cannes Film Festival for her role in the gritty drama "Nil by Mouth" which also earned her a BAFTA nomination for Best Actress in a Leading Role.
Split into simpler sentences: Burke won the Best Actress award at the 1997 Cannes Film Festival for her role in the gritty drama "Nil by Mouth". The film also earned her a BAFTA nomination for Best Actress in a Leading Role.