Dragon Ball: Sleeping Princess in Devil's Castle is a 1987 Japanese anime fantasy martial arts adventure film and the second anime feature film based on the Dragon Ball manga by Akira Toriyama. It was originally released in Japan on July 18 at the "Toei Manga Matsuri" film festival as part of a quadruple feature along with the first Saint Seiya film and the film versions of Hikari Sentai Maskman and Choujinki Metalder. An English dub by Funimation was released in 1998. It was preceded by Dragon Ball: Curse of the Blood Rubies and followed by Dragon Ball: Mystical Adventure.

Hikari Sentai Maskman is a Japanese Tokusatsu television show and Toei's eleventh entry of the Super Sentai metaseries. It aired on TV Asahi from February 28, 1987, to February 20, 1988, replacing Choushinsei Flashman and was replaced by Choujyu Sentai Liveman with a total of 51 episodes. Its international English title as listed by Toei is simply Maskman.