Last Night is a 2010 drama romance film written and directed by Massy Tadjedin. It stars Keira Knightley, Sam Worthington, Eva Mendes and Guillaume Canet. The film's official trailer was released on November 6, 2010. It was released both in theaters and video-on-demand on May 6, 2011 in the United States. The movie centers around Joanna (Keira Knightley) and Michael Reed (Sam Worthington), a successful and happy couple. They are moving along in their lives together until Joanna meets Laura (Eva Mendes), the stunningly beautiful work colleague whom Michael never mentioned. While Michael is away with Laura on a business trip, Joanna runs into an old but never quite forgotten love, Alex (Guillaume Canet). As the night progresses and temptation increases, each must confront who they really are.