The film was shot on location in Yugoslavia, and claims to be based on a true story.
Rod Taylor was involved in rewriting and shooting some additional scenes during post production.
[1] The producer, Ika Panajotovic, was a lawyer and former tennis player who represented Yugoslavia in the Davis Cup and reached the semi-finals at Wimbledon.
[2] Footage from Hell River was used in Once Upon a Time in Hollywood, reedited to feature Leonardo DiCaprio.
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