Movie reviews: Ex Machina, A Most Violent Year, The Gambler

Identifying the essence of what it means to be human is a staple of the sci-fi genre, a philosophical question that becomes ever more pressing the more advances are made in the realm of computer-generated artificial intelligence.

As Ex Machina (15A) opens, computer programmer Caleb (Domhnall Gleeson) is delighted to win a competition to spend a week with his boss, the legendary coding genius Nathan (Oscar Isaac), the man behind the internet search engine Bluebook.