King Kong was a film from the planet Earth. It was the subject of a question at the Black Swan pub quiz in Cheldon Bonniface in April 2010. Punters were asked what the sequel was to the film, which puzzled most of those present: neither the Isley Brothers nor the Seventh Doctor were aware of a sequel, and Jason Kane could only guess Mighty Joe Young. (PROSE: Happy Endings)
In 1933, the First Doctor and the Major watched King Kong at the Keelmouth Odeon and thoroughly enjoyed it. (PROSE: Bide-a-Wee)
The Tenth Doctor liked the film and claimed he was present at the real-life events that inspired the film, saying the film was closer to fact than is assumed. (COMIC: Echo)
King Kong Escapes was a 1967 film. It featured a character named Dr Who. (PROSE: The Adventuress of Henrietta Street)
Behind the scenes
In fact, Mighty Joe Young was a semi-remake of King Kong, and the correct real world answer, not mentioned in Happy Endings at all, is The Son of Kong — or King Kong Lives at a stretch.