Operation Daybreak (also known as The Price of Freedom in the US) is a 1975 World War II film based on the true story of Operation Anthropoid, the assassination of SS General Reinhard Heydrich in Prague.

Hentschel also wrote the theme music for the films The Squeeze, Educating Rita and Operation Daybreak.

Operation Daybreak (1975)

Operation Daybreak (1976)

In 1975, Stanley was associate producer on Operation Daybreak for Warner Bros.