Michael Angelo Avallone was an American author of mystery, secret agent fiction, and novelizations of television and films. His lifetime output was over 223 works, published under his own name and seventeen pseudonyms.

Beneath the Planet of the Apes is a 1970 American science fiction film directed by Ted Post from a screenplay by Paul Dehn, based on a story by Dehn and Mort Abrahams. The film is the sequel to Planet of the Apes (1968) and the second installment in the Planet of the Apes original film series. It stars James Franciscus, Kim Hunter, Maurice Evans, and Linda Harrison, and features Charlton Heston in a supporting role. In the film, another spacecraft arrives on the planet ruled by apes, carrying astronaut Brent (Franciscus), who searches for Taylor (Heston).