20th Century Fox optioned two of his non-fiction works. "Patton: Ordeal and Triumph" became one of the source books for "Patton" (1970). And years earlier they had acquired "The Broken Seal" which became one of the source books for "Tora! Tora! Tora!" (1970). Both were very expensive productions and, at one point, both were in production at the same time for 1970 release.
