Michael Pena has revealed he felt like a real cop while making End Of Watch.
The Shooter star and Jake Gyllenhaal play patrol police officers in the new movie, and the pair made sure to conduct some on-the-job research before filming began.
"We did a bunch of ride-alongs for five months. I felt like a cop, I really did, except I never had a real gun," Michael said.
"When you go and see somebody shot in the face, you realise that it's not a joke. It was also sad to see when women are beat up by their husbands and they don't want to press charges against their husbands for some reason - one time it was because he's the guy that gets the drugs and I was like 'Wow, this is unbelievable' - kids hurt or whatnot, it's an eye-opener for sure."
He added: "When you see it first hand, you understand what these guys actually go through."
:: End Of Watch opens in cinemas on Friday, November 23.