Sienna Miller and Giancarlo Giannini have joined the film adaption of novel The Catcher Was A Spy by Nicholas Dawidoff.
The film is centered around professional baseball player Moe Berg who was also a spy for the OSS the forerunner for the CIA. Berg’s most important mission during the war – was to infiltrate the circle of Werner Heisenberg, the enigmatic lead scientist for the Nazi atomic program.
Miller plays Estella Huni, Berg’s love interest. Giannini plays Italian physicist Professor Eduardo Amaldi.