The Bad Lord Byron

The film was announced in 1945 by Two Cities with Eric Portman to play the title role (Portman had played Byron on stage).[3] Stewart Granger was mentioned as another possibility. The film was to be written, produced and directed by Terence Young based on the books by Peter Quennell, The Years of Fame and Byron in Italy.

The project was not made but was re-activated when Sydney Box took over Gainsborough Studios in 1946. Box had been considering a film based on Percy Shelley but was also enthusiastic about making one on Byron, who Box greatly admired. He assigned the project to producer Aubrey Baring and director David MacDonald. They greatly reduced Young's script by a half but Box was still dissatisfied with it.[6]

Working with Gainsborough script adviser Paul Holt, Box reconfigured the film to consist of a series of flashbacks about episodes in Byron's life. Box ultimately decided this approach was too derivative of Citizen Kane and made Byron's presence in the film too insubstantial. He then decided to focus the script on Byron's relationship with Teresa Guiccioli but changed his mind with Mai Zetterling who was playing that part was not available.[6]

The lead role was given to Dennis Price, who said during shooting he felt Portman should play the role.[7]

Location filming began in Italy in October 1947.[8] They returned in December.[9] It was followed by shooting in Shepherd's Bush studio. Filming was done by April.[10]

A Nottingham City librarian refused permission for the filmmakers to shoot at Newstead Abbey because of Byron's reputation.[11] Sydney Box called it "an example of bureaucracy at its worst."[12]

Great effort and much money was spent to ensure the film was as historically accurate as possible in terms of sets and costumes. It was not shot in colour as to do so would have increased its budget by a third, and also as colour cameras were being used on the film The Blue Lagoon.[6] A huge set was built at Shepherds Bush.[13] Filming took eleven weeks.[14]

Before the film was released, the US announced they would not allow the film to be screened there because of the relationship between Byron and his half sister, even though it was not featured in the film.[15]

Sydney Box later heard a radio play about Byron, The Trial of Lord Byron by Laurence Kitchin which he thought would tie up some loose ends of the film. It consisted of Byron being hauled before a celestial court and forced to justify his actions. Box bought the rights to the radio play and had David MacDonald shoot 22 minutes of retakes in two days.[16][6]

The movie received bad reviews. Dannis Price later said "One day I hope to have enough money to make another Byron film — the real story. And if I could get hold of all the scenes we shot and which never appeared in the film, two-thirds of the Job would be done."[17]

A critic for Time Out has written of the film:

Not as bad as its reputation would suggest, since it is well acted and stylishly shot, but the script is undeniably silly. Starting with Byron (Price) dying in Greece, it cuts to a celestial trial at which the women in his life appear to give evidence, their stories being seen in flashback. The fatuous point is to determine whether Byron is a great poet and fighter for liberty or a bad, evil rake. Very basic stuff, historically inaccurate and not made any more convincing by the eventual revelation that the judge is Byron himself (though his lines have hitherto been delivered by someone else).[5]

The film was a box-office disaster. In 1949 it had earned £22,400, recording a loss of £179,200.[2]