Keira Knightley's Edge of Love

Keira Knightley and camera-shy costar Sienna Miller do interviews at Radio One studios in central London on Tuesday.

The pair promoted their latest movie, The Edge of Love. The story is based loosely on real events and people. During World War II, Vera Phillips (Knightley) runs into her first love, charismatic Welsh poet Dylan Thomas (Matthew Rhys), and their feelings for each other are renewed, despite that Dylan is now married to the spirited Caitlin (Miller). Despite their rivalry, the two women become friends and the trio have happy times together. When Vera marries soldier William Killick (Cillian Murphy), Dylan becomes jealous at the addition of him to the group, and Caitlin notices. But William is soon deployed abroad, and the remaining trio moves to the Welsh countryside, and Vera’s feelings for William intensify. When William comes home from the war, his jealousy explodes and he attacks Dylan.

The Edge of Love opens in UK theaters this Friday, June 20. No U.S. release date has been set yet.