Hollywood’s former bad-boy Colin Farrell was once… even badder!

He was formly famed for his wild-streak.

However, last night Colin Farrell really caught our attention when he revealed that his one-time Hollywood bad boy image pales in comparison to his teenage years.

Indeed, the 39-year-old Dubliner previously had a serious run-in with the law, being questioned by police in relation to an attempted murder while in Australia.

"In my late teens, I was brought in by the cops for questioning as a suspect in an attempted murder," he revealed while appearing on The Tonight Show with Jimmy Fallon.

“I was supposed to bring my mother to the airport and I was pulled in by the cops."

He went on to explain: “I saw a photo of the guy that did the crime and I thought it looked remarkably like me and for a second, I had a black out that night I wondered, could I have done such a thing?”

The incredible revelation came to light during a game of True Confessions, in which Jimmy Fallon and Vince Vaughan both had to guess if Mr Farrell was telling the truth or telling fibs.

In response to Colin's tale, poor Vince even got a bit cagey saying: “I’m a bit nervous here cause I think we might have a guy that got away with murder.”

In the end, Jimmy and Vince guessed he was telling the truth, and guess what, he was!

But don’t fret, he actually was in no way involved in the crime it just happened to be committed by someone that looked extremely like him.

Colin is currently playing a leading role in TV series True Detective alongside Vince Vaughn.