6 Underground is a 2019 American action thriller film directed by Michael Bay and written by Paul Wernick and Rhett Reese. The film stars Ryan Reynolds, Mélanie Laurent, Manuel Garcia-Rulfo, Adria Arjona, Corey Hawkins, Ben Hardy, and Dave Franco. Bay produced the film with his longtime business partner Ian Bryce and Skydance's David Ellison, Dana Goldberg and Don Granger.