Couch Potato's Tuesday Trivia: Perturbing the primates in The Omen

I find this 1976 movie about the birth of the Antichrist one of the most chilling movies ever.

The scene where evil child Damien (Harvey Stephens) is taken to a safari park by his 'mother' (Lee Remick) is particularly distressing, especially when his presence agitates the baboons in their enclosure.

Apparently, to make the baboons attack the car, a zoo official was in the backseat of the car with their leader baboon, which made all the baboons outside go frantic.