Exclusive extras from Alastair Sooke's Pop art programme, part of 91福利社 Four Goes Pop.
Alastair Sooke meets the wife of one of the leading American artists associated with Pop.
Deller meets Alastair Sooke to discuss the imagery of violence in some of Warhol's work.
The artist's daughter, Kate, shows Alastair Sooke the source materials for the work.
