The Green Knight is a 2021 medieval fantasy film directed, written, edited and produced by David Lowery, adapted from the 14th-century poem Sir Gawain and the Green Knight. The film stars Dev Patel as Gawain, a nephew of King Arthur, who sets out on a journey to test his courage and face the Green Knight. It also stars Alicia Vikander, Joel Edgerton, Sarita Choudhury, Sean Harris, and Ralph Ineson.

The Green Knight was theatrically released in the United States on July 30, 2021 by A24. The film received positive reviews from critics.

Dev Patel as Sir Gawain 

Alicia Vikander as Essel and the Lady 

Joel Edgerton as the Lord 

Sarita Choudhury as Morgan le Fay 

Sean Harris as King Arthur 

Ralph Ineson as the Green Knight 

Barry Keoghan as the Scavenger 

Erin Kellyman as Winifred

 Kate Dickie as Queen Guinevere 

Atheena Frizzell as Youngest Sister 

Nita Mishra as Older Sister Tara McDonagh as Middle Sister 

Helena Browne as the Sightless Woman 

Megan Tiernan as Gawain's Young Queen 

Emmet O'Brien as Merlin