A former inmate has claimed that Mackenzie Shirilla, the young woman featured in the Netflix documentary “The Crash”, is very different from how she is portrayed on screen.

Shirilla, 21, was convicted of intentionally crashing her car in 2022, an incident that killed her boyfriend Dominic Russo and a friend. The case has gained renewed attention after the documentary climbed to the top of the streaming charts on Netflix shortly after its release.

In the film, Shirilla appears behind bars expressing remorse and insisting she is “not a monster.” But Mary Katherine Crowder, a former inmate who says she served time with her in 2024 at the Ohio Reformatory for Women, told The Post that the real-life version she knew was very different.

Crowder said she was shocked by Shirilla’s appearance in the documentary, claiming her demeanor, voice, and overall behavior did not match what she saw in prison.

“When she walked out in the documentary, my jaw dropped,” Crowder said, adding that Shirilla looked more serious and reserved on screen compared to her time in custody.

According to Crowder, Shirilla carried herself in prison like a “popular” figure. She described her as always well put together, wearing makeup, styling her hair, and maintaining what she called a “preppy” look. She also claimed Shirilla acted like a “prison celebrity” and was widely known among inmates.

Crowder further alleged that Shirilla socialized actively inside the facility, formed relationships with other inmates, and often appeared upbeat rather than withdrawn. She also claimed Shirilla spent time selling customized items and received financial support from outside sources for personal items such as makeup and clothing.

The former inmate said Shirilla’s behavior in prison did not match the remorseful tone shown in the documentary. “Never once did I see her cry,” Crowder claimed in social media posts that went viral.

She also questioned parts of Shirilla’s health claims and personal account of events, saying she never observed any medical issues during their time together.

Shirilla’s legal team has not publicly responded to the latest claims.

The documentary continues to spark discussion online, with viewers debating the contrast between the on-screen portrayal and accounts shared by former inmates.