Her role hasn't been revealed, according to The Wrap - leading fans to speculate on social media about which character she will play.

The film is being directed by Joe and Anthony Russo, and is due for release in April 2019.

Langford earned a Golden Globe nomination for her role as Hannah Baker on the controversial Netflix show.

In March, she will appear in another Netflix series titled Cursed, a new take on the King Arthur legend by Frank Miller and Tom Wheeler.

She will play Nimue, the teenage girl who becomes the Lady of the Lake.