First UNDERWATER Trailer Witness the first UNDERWATER trailer! The film, directed by William Eubank (The Signal), stars Kristen Stewart, T.J. Miller, Jessica Henwick, Mamoudou Athie, Gunner Wright, and Vincent Cassel. UNDERWATER will be released in theaters on January 10, 2020 A crew of underwater researchers must scramble to safety after an earthquake devastates their subterranean laboratory.