Persecución en el Norte

Errol Flynn was criticized for playing heroes in World War II movies. Tony Thomas in his book "Errol Flynn: The Spy Who Never Was" states that Flynn had tried to enlist in every branch of the armed services but was rejected as unfit for service on the grounds of his health--he had a heart condition, tuberculosis, malaria and a back problem. He felt he could contribute to America's war effort by appearing in such films as Al filo de la oscuridad (1943), Persecución en el Norte (1943), Bombarderos en picado (1941), Objetivo: Birmania (1945) and Gloria incierta (1944). Reportedly, he was at his most professional and cooperative while working on these movies. Warner Bros. apparently did not discuss the state of his health, as it wished to keep it quiet for fear that it would damage his box-office draw.

Near the end the Nazis' plane is shown spiraling over and over in exterior shots, but in shots in the plane's interior it's going straight down, not spinning out of control.

Featured in Hollywood on Trial (1976)