A source close to the actor told People that the scene involved Gyllenhaal’s character speaking to himself in a mirror before the performance became more physical.
“The scene was emotionally charged and his character was talking into a mirror and he got so into it, he banged his hands against the mirror and it broke and cut him,” the source said.
The source added: “It was all the scene and not because he was mad about anything else.”
In other words, this was apparently a workplace accident produced by an unusually committed performance rather than some separate backstage drama. The mirror, unfortunately, was not briefed on the distinction.
Gyllenhaal returned to the Nightcrawler set after treatment
Despite the severity of the cut, the hospital visit did not derail production for long.
Buxbaum said Gyllenhaal returned to work the next day for what was scheduled to be the final day of filming. He had spent only a few hours in the emergency room before being released.
That quick turnaround was particularly striking given the description of his hand as badly cut and the number of stitches required.
The incident also added another physical dimension to Gyllenhaal’s preparation for Nightcrawler. He was reported to have lost around 20 pounds for the role, dramatically changing his appearance to play the film’s central character.
Nightcrawler demanded an unusually intense transformation
Nightcrawler is a crime drama in which Gyllenhaal plays a man drawn into the business of reporting on violent crime scenes. The film also stars Rene Russo and Bill Paxton.
At the time of the accident, the movie was still awaiting release, with Gyllenhaal’s weight loss already attracting attention around the production.
The hand injury provided a more immediate example of how physically committed the performance had become. There is, of course, a considerable difference between changing your body for a role and accidentally putting it through a mirror.
What made the episode unusual was not simply that an actor was hurt on set, but that the injury appears to have emerged directly from the intensity of the performance itself.
The accident became part of Nightcrawler’s production story
Gyllenhaal’s return to work meant the accident did not prevent the production from reaching its planned final day of filming.
His representatives also made a point of separating the incident from any suggestion that he had lost his temper for reasons unrelated to the movie. The account from those close to him was consistent: the aggression belonged to the character and the scene.
For a film built around a protagonist pushing deeper into a grim and unsettling world, the episode offered an unusually literal example of Gyllenhaal’s commitment to the role.
The performance was supposed to make the scene feel dangerous. For a few hours in the emergency room, it apparently became dangerous for real.
