The two movies — "The Disappearance of Eleanor Rigby: Him" and "The Disappearance of Eleanor Rigby: Her" — will explore how a married couple in New York City deals with a life-altering experience.
Also read: Jessica Chastain, Joel Edgerton to Star in Myriad's Two 'The Disappearance of Eleanor Rigby' Films
Writer-director Ned Benson will tell the tale in two movies — one from the perspective of the husband (McAvoy) and the other from that of the wife (Chastain).
Myriad Pictures is pre-selling the title in Cannes this week.
“I am thrilled that we can share the excitement of James joining the cast with our buyers in Cannes, who have been so enthusiastic about the project from the beginning," CEO Kirk D’Amico said in a statement. "James is one of the finest actors working today and I look forward to seeing Ned’s rich, complex characters come alive.”
Chastain is in Cannes to promote The Weinstein Company’s "Lawless, and is also starring in Kathryn Bigelow’s "Zero Dark Thirty."
Cassandra Kulukundis ("A Late Quartet," "In Defiance of Gravity") is producing and casting.