Gene Kelly was an American film star during the 20th century.
In the 1950s, he starred in a film entitled Brigadoon with Van Johnson, which told the story of two American tourists who stumble upon a mysterious Scottish village which appears for only one day every 100 years. It was one of Lizzie Corrigan's favourite films. However, Nyssa had never heard of it. (AUDIO: The Eternal Summer)
After discovering that fragmentary historical records available in the year 4000 erroneously stated that the television presenter Bruce Forsyth was the Prime Minister of the United Kingdom in 1977, Charlotte Willis jokingly asked the Fourth Doctor if they thought that Kelly was the President of the United States. (AUDIO: The Foe from the Future)