Alastair Sooke takes us on an exclusive personal tour of the Roy Lichtenstein Retrospective at Tate Modern. Together with fans, critics, artists and those who knew Lichtenstein, Alastair leads an entertaining and provocative discussion about the work and legacy of one of the most celebrated and instantly recognisable artists of the 20th century. Renowned for his works based on comic strips and advertising imagery, Lichtenstein's chisel-jawed action men and love-lorn women made him the hero of the Pop Art movement.