09/05/2014 14:30 BST | Updated 08/07/2014 06:59 BST

Surrealism? It's Mostly About Sex, Says Peter Capaldi

A lobster on a telephone, a clock that seems to have melted. These are some of the most famous images of the movement known as 'Surrealism', but what are they all about? Sex, mostly, explains the Dr Who actor and former art student, Peter Capaldi.

Starting with Surrealism's birth in a Paris café in 1924, Capaldi settles down on Freud's couch for a wry look at this most intriguing of movements, in the latest video in Tate's Unlock Art series.

Watch the rest of the Unlock Art series