'I know the landscapes were in my arms,' Helen Frankenthaler said of the picture, Mountains and Sea, which established her reputation as a leading Abstract Expressionist.
In a documentary appreciation of her career, Richard Cork reflects on the lyrical sources of her inspiration.
With contributions from herself, the sculptor Anthony Caro , the critic Bryan Robertson and John Elderfield , Director of Drawings at the Museum of Modern Art, New York. Producer JUDITH BUMPUS