Saoirse Ronan has joined the cast of “Bad Apples,” a new movie being described as a “biting satirical comedy with thriller elements.”

In “Bad Apples,” Irish American Oscar nominee Ronan plays Maria, “a primary school teacher doing her best to inspire a class of 10-year-olds but unable to because of one unruly and chaotic student. 

“With her career in question and the child’s behavior spiraling, she makes a series of bad decisions that lead to her accidentally taking and locking this ‘bad apple’ in her home. 

“Maria tries desperately to backtrack, but when the class starts flourishing and the staff and parents are thrilled with the improvement, she finds herself in a very complicated predicament.”

"Bad Apples" is reportedly due to begin filming in the UK in spring 2024.

Deadline reports that "Bad Apples" is an adaptation of Rasmus Lindgren’s debut novel "De Oönskade" written by Jess O’Kane.

Oskar Pimlott will produce "Bad Apples" for Pulse Films, while executive producers are Judy Counihan and Jamie Hall for Pulse Films, Philip Knatchbull, Marc Smit, Paul Wiegard, and Kristian Brodie for CCM, and Paul Grindey and Charles Moore for Viewfinder Film.

The film is Swedish writer-director Jonatan Etzler's English movie debut.

Pimlott said: “Jonatan has an unparalleled ability to create hilarious and horrifying cinema from the uncomfortable truths of human nature.

"We couldn’t be more excited that his unique perspective is going to collide with the extraordinary depth and talent of Saoirse Ronan in this special film.”

Sales for "Bad Apples" are being launched by HanWay Films, whose CEO Gabrielle Stewart said: "We have been following with much excitement the development of this brilliant screenplay with one of the most interesting directors to be emerging from Scandinavia.

"This is such a juicy part for Saoirse Ronan who will bring to life all the drama, the comedy, and the brutal tension of this unique role.

"Pulse are producers making cutting edge cinema and we are thrilled to be working with them.”

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Deadline notes that other upcoming projects for Ronan include Steve McQueen’s “Blitz” for Apple and Nora Fingscheidt’s addiction drama “The Outrun,” based on Amy Liptrot’s bestselling memoir.

Ronan, who was born in New York and raised in Co Carlow, is currently co-starring opposite fellow Irish Oscar nominee Paul Mescal in "Foe."