Trivia

Along with future Prime Minister James Callaghan, Jackson participated in a visit to Stalingrad organised by the Labour Party in December 1945.

He is the only actor to appear in both The Quatermass Experiment (1953) and The Quatermass Xperiment (1955).

He and Kenneth Williams co-wrote "Ma Crepe Suzette", a comedy song in which Williams sings random unrelated French words and phrases, in a suggestive fake French accent, to the tune of "Auld Lang Syne". Williams performed it live on TV the night after he and Jackson had written it.

He was awarded the OBE (Officer of the Order of the British Empire) in the 1979 Queen's New Year Honours List for his services to drama.

Appeared in one film nominated for Best Picture Oscar: Mutiny on the Bounty (1962).

From the late-60s till his death, he decided to act in projects filmed in his native U.K. or Europe, since he wanted to remain close to his home. He already had several years of appearing in films with a few big-name American stars.

After doing the film The Foreman Went to France he returned to Rolls Royce until he was asked to do another film and had to make a choice between films and Rolls Royce and the world of films won.

Was directed by Ronald Neame in three films: Tunes of Glory (1960), The Prime of Miss Jean Brodie (1969) and Scrooge (1970).

Never had any desire or taste to do any behind-the-scenes work on films or TV.

Was considered for the cameo role of Dr. Armstrong in Lifeforce (1985).

In the early years his films were invariably war films in which his character was invariably killed.

He was very critical of his work so much so that he would never watch anything he'd been in.