Los Angeles, Oct 26 : Hollywood actor Chris Pratt, who will be next seen in his upcoming thriller, 'Mercy', has shared his experience of filming with the Los Angeles Police Department (LAPD).

He also shed light on the most difficult part of working on the film, and how he prepared for his new film, reports 'People' magazine.

In the film, he stars as an Los Angeles detective who has limited time to uncover the truth about his wife's death after being blamed for her murder.

As per 'People' magazine, the actor revealed that the most difficult part of working on 'Mercy' came while he was spending time with law enforcement officers to gain a deeper understanding of his character.

"I had an opportunity to work with the Los Angeles Police Department, and their homicide division and so I was able to go down and talk to those guys."

He added that he performed stunts while working alongside the police.

"It was really incredible. I mean some of the stunt work we did was really great," he shared.

The 'Guardians of the Galaxy' star says performing stunts wasn't the most challenging aspect of his time with the Los Angeles Police Department.

He also said, "We got to drive, cop cars and do some like cool bar fight stuff, but, the majority of the difficulty was just kind of hearing some of these stories and wow, it's a real testament (sic)."

"Like we kind of take it for granted here we are in New York City, but there's a homicide detective out there right now working a homicide. We don't really see much about that necessarily in the news, but man, these guys are heroes and the trouble that they encounter and the trauma they see on a day to day basis is really really staggering," he added.

/IANS