Roger Waters talks about new film The Wall

Pink Floyd legend Roger Waters talks about his new film, Roger Waters The Wall.

Roger Waters The Wall is a concert-film that also features Roger on a personal journey as he looks at the impact of war and visits graves of his family, killed in World War I and Wold War II.

The Special Edition's bonus footage includes the moment when Roger was joined on stage by Pink Floyd band mates David Gilmour and Nick Mason in London for a performance of Comfortably Numb during The Wall Live tour.

Roger says it's a tricky film concept to describe: