On February 14, 2020, a Chinese-character trailer was revealed for the film
. In November, the film received an MPAA rating. In the end, it received a restricted rating, which is an R rating
; in December, the film was re-filed and will be released in North America on July 30, 2021
.
In April 2021, "Green Knight" revealed a set of stills. In the stills, Gawain, played by the protagonist of the film Dev Patel, rides a horse and takes a huge cold weapon on the road. There are countless unknown dangers and creatures waiting for him on the way.
In May, a new trailer for the film was released, with a weird and grotesque medieval style
. In June, the film released a behind-the-scenes special, introducing legendary literary works.
In July, the film "Green Knight" directed by David Lowery, released by A24, exposed a two-minute feature film clip.
