Monstroid Buried in the mud of countless centuries — something has begun to grow.... Release date: 1980-07-11 Genres: Horror, Science Fiction Actors: John Carradine, Philip Carey, Aldo Sambrell, Anthony Eisley, James Mitchum, Hanna Landy, Carolyn Martin, Luis Suárez, Glenn Ransom, María Rubio, Coral Kassel, Fernando Corredor, Andrea Hartford, Roberto Martínez, Emanuel Smith, Roger Clark, Steven Fisher, John Lamarr, Kelly Sill, Connie Moore, Felicia Robbins, Stella Calle, Jack Lamont, Paolo C'd Baca, Leslie Meigs, Henry Gabaldon, Pam Day, Jannine May, Monte Cook, Jade Stuart Production: Glen Hartford Runtime: 1 h. 38 min. Score: 3.4/10 Votes: 16 Countries: United States of America Companies: Academy International Available* : Overview: A rural Colombian village is attacked by a horrible sea serpent, aroused by industrial pollution of a nearby lake. Based on a real event that took place in June of 1971.