The end credits have a blurred-out image of the real Detective "Woody" Woods, undercover narcotics officer. The DVD special features interviews include the real Detective Woods (and actor Dean Cain who plays him), and his face is not blurred.
In the film, the investigators dress in protective gear prior to entering Gosnell's basement. The real investigators first entered the basement without protective gear and retreated upon encountering the flea infestation. They donned protective gear and entered the basement a second time.
Though the patients in the movie were shown wearing hospital gowns, Gosnell's real patients were not given gowns. According to the Grand Jury report, they were made to strip from the waist down and given blood-stained blankets to cover themselves.
Gosnell's attorney holds up obstetric forceps, not the Bierer or Hern forceps that would be used for an abortion.
The photo of "Baby Boy A" was not uncovered during the trial after pressing an employee to do the right thing. The Grand Jury report noted: "FBI Agent Huff testified that Adrienne Moton gave him consent to search her cell phone for the photograph that she took. The FBI lab was able to find the picture on cell phone; we saw this photograph, introduced as Exhibit 57. "
In the film, Gosnell arrives at his clinic during the raid. In real life, law enforcement waited until Gosnell had arrived to enter the building themselves.
On January 19, 2011, Gosnell is arrested and taken from his house wearing a T shirt. The trees in the background and the other actors' clothes don't correlate to Philadelphia in January.
The clinic nurse who explains the pill mill operation to the cops says they have three kinds of patients, but only mentions two: seekers, fake customers who sell the pain meds, and procedures, the women getting abortions. In real life the three types listed were seekers, procedures, and sick.