The actress will play the wife of James Donovan (Hanks), an attorney who finds himself thrust into the center of the Cold War when the CIA sends him on the near-impossible mission to negotiate the release of a captured American U-2 pilot.
PHOTOS Steven Spielberg on Set
Alan Alda, Billy Magnussen and Eve Hewson also are in talks to join the project, which is set to begin production in September and will be shot on location in New York and Berlin.
20th Century Fox is co-financing the film with DreamWorks, and will distribute internationally while Disney will handle domestic distribution.
Spielberg will direct and produce the film with Marc Platt and Kristie Macosko Krieger. The executive producers are Adam Somner and Daniel Lupi. Joel and Ethan Coen wrote the script based on an original script by Matt Charman.
The film is slated for release Oct. 16, 2015.
Ryan most recently appeared in Devil’s Knot and has several projects coming up, including Birdman, Monster Trucks and Goosebumps. She’s repped by Gersh, Lisa Richards Agency in Ireland and Bloom Hergott.
Alda’s recent films include Wanderlust and Tower Heist and he’s currently shooting The Longest Ride. He’s repped by ICM Partners.
Magnussen will play Rapunzel’s prince in Disney’s upcoming film Into the Woods. His previous work include The East and The Brass Teapot. He’s repped by BRS/Gage Talent Agency, Authentic Talent and Literary Management and Sloane, Offer.
Hewson appeared in Enough Said and This Must Be the Place, and is repped by UTA and Brillstein.