The Secret of the Purple Reef When a man mysteriously vanishes on his ship in the Caribbean, his two brothers journey there to investigate his disappearance. Details Casts Galleries Posters Title The Secret of the Purple Reef Release Date 1960-12-11 Runtime 01 Hours 21 Minutes Genres Drama Crime Adventure Production Companies Associated Producers (API) Production Countries United States of America Jeff Richards... Mark Christopher... Richard Chamberlain... Dean Christopher... Margia Dean... Rue Amboy... Peter Falk... Tom Weber... Terence de Marney... Ashby... Robert Earl Jones... Tobias... Original Size (1422x799) Original Size (500x750)