Mighty Joe Young

Mighty Joe Young was a movie from 20th century Earth. During a 2010 pub quiz at the Black Swan in Cheldon Bonniface, it was the answer the quiz masters expected to the question, "What was the sequel to King Kong?" In fact, though, several quiz-goers — including the Seventh Doctor and Jason Kane — disagreed with this assessment. They insisted Kong had no sequel. (NA: Happy Endings)

Behind the scenes
The reason Mighty Joe Young is sometimes confused as a sequel to King Kong is that it, too, deals with a giant gorilla transplanted from its natural environment to the United States. Also, the same people worked on the special effects in both movies, giving them a similar look. But Mighty is no sequel to King.

saying this there in fact was a sequel to kong called son of kong witch involved a much freindlier version of kong.