The 54-year-old British actor will be one of the cast members of four upcoming Avatar movies.
Thewlis became famous, appearing in Mike Leigh's Naked (1993), but he will surely be remembered best for his role of Professor Lupin, in The Harry Potter film series.
David Thewlis' latest effort is The Mercy (2018), a biopic about Donald Crowhurst and his solo attempt to circumnavigate the globe.
He is not making any more new movies for a time being, because he is preparing for all the Avatar sequels, that are announced to be released in 2010, 2021, 2024 and 2025.
His co-workers will be famous actresses and actors such as Kate Winslet, Zoe Saldana, Sam Worthington, Giovanni Ribisi, Oona Chaplin, Stephen Lang and Sigourney Weaver.
Avatar (2009) was written and directed by James Cameron, and he will be the main guy for the upcoming sequels. Avatar (2009) tells the story about a paraplegic marine dispatched to the moon Pandora, on a unique mission. He becomes torn between following his orders and protecting the world he feels is his home.
Find out more about the upcoming Avatar movies, and click on the video above!