EXCLUSIVE: Assassination Nation and The White Princess actress Suki Waterhouse has joined Keira Knightley-fronted Miss World movie Misbehaviour in the supporting role of Sandra Wolsfeld, Miss USA.

The Crown outfit Left Bank Pictures is producing the dramedy, currently in production, which is set against the backdrop of the 1970 Miss World competition in London, hosted by Bob Hope. The newly formed Women’s Liberation Movement achieved overnight fame by invading the stage and disrupting the live broadcast of the beauty contest. When the show resumed, the result caused uproar: the winner was not the Swedish favorite but Miss Grenada — the first black woman to be crowned Miss World.

Knightley stars with Gugu Mbatha-Raw, Jessie Buckley, Keeley Hawes, Rhys Ifans, Greg Kinnear, Lesley Manville and Phyllis Logan. Philippa Lowthorpe (Three Girls) will direct. Screenplay comes from Rebecca Frayn with revisions by Gaby Chiappe. Pathé handles sales.

Last year Waterhouse starred in movies including Assassination Nation, Charlie Says and Jonathan. In post-production she has features Pokémon Detective Pikachu, Killers Anonymous, Bittersweet Symphony and Burn and she also stars in Woody Allen’s A Rainy Day In New York. She is repped by Independent Talent in London and CAA and Untitled Entertainment in the U.S.