Temptation and morality are at the forefront of writer and first-time director Massy Tadjedin's 'Last Night.' The film centers on a young married couple, played by Keira Knightley and Sam Worthington, who test their commitment to each other during a night away from each other.

Following a jealous argument between Joanna (Knightley) and Alex (Worthington), Alex goes on a business trip with his attractive colleague Laura (Eva Mendes). Meanwhile, Joanna has a chance meeting with an old flame (Guillaume Canet) on the street, who is only in town for one more night. 'Last Night' follows them as they toy with the idea of infidelity in the face of serious temptation. The nuanced performances by the cast and the deception that does and doesn't happen ultimately make it a fascinating glimpse into an honest scene in the life of an almost reluctant married couple.

PopEater had a chance to speak with Tadjedin, Mendes and Griffin Dunne, who plays Canet's instigating friend, following the film's debut at the Tribeca Film Festival, where they opened up about shooting a "moral thriller," working with such a superb cast and the sexy Sam Worthington.