Trivia

Richard Burton's last successful movie at the U.S. box office.

Ingrid Pitt (Heidi) said Richard Burton (Major Jonathan Smith) was drinking very heavily during filming, as he was depressed about the decline of his marriage and his movie career.

Despite Clint Eastwood's reputation for violence in other movies, his character kills more people in this movie than any other Eastwood character.

Clint Eastwood refused to have his hair cut for his role.

Clint Eastwood was reluctant to receive second billing to Richard Burton, but agreed after being paid $800,000.