All My Sons is based upon a true story, which Arthur Miller’s then-mother-in-law pointed out in an Ohio newspaper. The news story described how in 1941–43 the Wright Aeronautical Corporationbased in Ohio had conspired with army inspection officers to approve defective aircraft engines destined for military use.

The story of defective engines had reached investigators working for Sen. Harry Truman’s congressional investigative board after several Wright aircraft assembly workers informed on the company; they later testified under oath before Congress.  In 1944, three Army Air Force officers, Lt. Col. Frank C. Greulich, Major Walter A. Ryan, and Major William Bruckmann were relieved of duty and later convicted of neglect of duty.
Directed by Nina Schuessler