The Catcher Was a Spy is a 2018 American war film directed by Ben Lewin and written by Robert Rodat, based on the book of the same name by Nicholas Dawidoff. It stars Paul Rudd as Moe Berg, a former baseball player who joined the war effort during World War II and participated in espionage for the U.S. Government. Mark Strong, Sienna Miller, Jeff Daniels, Tom Wilkinson, Giancarlo Giannini, Hiroyuki Sanada, Guy Pearce, and Paul Giamatti also star. The film premiered at the 2018 Sundance Film Festival, and was released on June 22, 2018, by IFC Films.
Moe Berg, a 15-year baseball veteran, joins the war effort as a spy to beat Nazi Germany in the race to build the first atomic bomb. In 1936, Berg is playing for the Boston Red Sox near the end of a long if undistinguished pro career. On a goodwill baseball exhibition tour of Japan, Berg sneaks onto the roof of a Tokyo hospital to covertly film Tokyo’s harbor and Navy shipyards. The Office of Strategic Services Chief to whom he presents the film is impressed by Berg’s enterprise, as well as the extensive language skills that Berg has picked up at Princeton and elsewhere, and Berg is hired. Werner Heisenberg, who won the Nobel Prize in 1932 for pioneering quantum physics, is now in charge of the Nazis’ attempts to create an atom bomb. If he succeeds, the Germans could win the war. Berg is smuggled into Italy and then Switzerland, with the task to discover if Heisenberg is anywhere near that goal. If so, it will fall to Berg to assassinate the brilliant physicist.