The iconic, blood-curdling scream and look of pure terror on Audrey Hepburn’s face in the legendary “Mouth of Truth” scene from the 1953 classic, Roman Holiday, was entirely unscripted and completely real. Her panic, captured forever on film, was the result of a spontaneous, on-set prank orchestrated by her co-star, Gregory Peck, and secretly preserved by director William Wyler.
The Prank at the Bocca della Verità
The scene takes place at the Bocca della Verità (Mouth of Truth) in Rome. According to local legend, this ancient marble mask will bite off the hand of anyone who tells a lie when they insert it into the opening. The original script required Gregory Peck’s character, Joe Bradley, to simply insert his hand and safely pull it out, proving the legend was just a harmless story to Princess Ann (Audrey Hepburn).
However, the veteran actor Gregory Peck, known for his sense of humor, reportedly cooked up a plan with director Wyler. Without telling Hepburn, they decided to pull a classic vaudeville gag. Peck would insert his hand and, as he dramatically withdrew his arm, he would quickly tuck his real hand up the sleeve of his jacket. The goal was to make it appear, for a brief, terrifying moment, that the ancient mouth had actually bitten his hand off.
A Scream of Genuine Terror
When the cameras began to roll, the scene proceeded as planned until the crucial moment. Peck stuck his hand into the dark crevice, paused for effect, and then pulled his arm back, his hand conspicuously absent. Audrey Hepburn’s response was immediate and overwhelming.
Believing her co-star had suffered a gruesome and genuine accident, she let out a piercing scream of distress. Her face contorted into an expression of utter horror and shock. The camera captured her authentic panic and the moment she nearly lunged forward in a desperate attempt to help him.
Wyler Keeps the Cinematic Gold
The genuine emotion was undeniable. When Peck revealed his hand, Hepburn immediately transitioned from terror to shock, then relief, before finally dissolving into spontaneous, genuine laughter at realizing she had been duped. Director William Wyler, recognizing the pure, candid magic of the spontaneous reaction, made the instant decision to keep the footage.
This improvised moment of vulnerability and trust between the two actors perfectly captured the burgeoning dynamic of their on-screen romance. It has become one of the most beloved and indelible scenes in cinematic history. The authenticity sealed the film’s success, which went on to win three Academy Awards, including a Best Actress Oscar for Hepburn in her American film debut, cementing the legacies of both stars.