Lamb is a 2021 folk horror film directed by Valdimar Jóhannsson, who also co-wrote the screenplay with Sjón. The film's plot is about the birth of a human/sheep hybrid of mysterious origin and the couple who adopts the child as their own. An international co-production between Iceland, Sweden, and Poland, the film stars Noomi Rapace, and marks Valdimar's feature-length directorial debut. Rapace and Béla Tarr were executive producers. After premiering at the 2021 Cannes Film Festival, the film was released in Iceland on 24 September 2021. It was selected as the Icelandic entry for the Best International Feature Film at the 94th Academy Awards.

The 74th annual Cannes Film Festival took place from 6 to 17 July 2021, after having been originally scheduled from 11 to 22 May 2021. American director Spike Lee was invited to be the head of the jury for the festival for a second time, after the COVID-19 pandemic in France scuttled plans to have him head the jury of the 2020 Cannes Film Festival.