Trivia

Was 'blacklisted' for a time while in Hollywood.

Educated at Harvard and the London School of Economics.

Grandson of RADA founder Herbert Beerbohm Tree

His friends included Elizabeth Taylor, Simone de Beauvoir and Jean-Paul Sartre.

Modified a substantial part of The Great Escape (1963), but chose to forgo a credit.

In 1943, Moffat enlisted in the U.S. Army as a writer in the Signal Corps, known as the "Hollywood Irregulars". Subsequently worked as assistant to the director George Stevens at Paramount.

Daughter with 'Caroline Blackwood'

Great-nephew of Max Beerbohm

Son of actress/poet Iris Tree and photographer 'Curtis Moffat'.

Ivan Moffat was father of Ivana Lowell (as acknowledged by her in interviews and in his obituary 2002), who was born to Lady Caroline Hamilton-Temple-Blackwood during her second marriage to Israel Citkowicz. Ivana later assumed the name Lowell, during her mother's third marriage to poet Robert Lowell. [Lady Caroline Blackwood, a society writer, was once married to painter Lucian Freud; her elder surviving daughter Evgenia is wife of actor Julian Sands].

Served as the model for Patrick in Christopher Isherwood's novel "A Meeting By the River".