WATCH: Colin Farrell's 'retro bush' story about his first ever sex scene cracks Ellen up
Colin Farrell made the Ellen Show audience blush with a story about his botched attempt at trimming his pubic hair.
The Hollywood star told the hilarious anecdote for De Generes' new Celebrity Confession segment in which a celebrity admits something they have never revealed before in exchange for up to $10,000 for a charity of their choice.
"I was doing my first American film, I think in the year 2000, and there was a sex scene in it and I was very nervous because I'd never done a sex scene," he began.
"Anyway, I went up to the director, Joel Schumacher, and I had a dressing gown on and nothing underneath and obviously I was so nervous I lost my mind for a second because I opened my dressing gown for a second and I said, 'It's a bit, is it a bit...' because like most men I had what you could refer to as 'retro bush'."
He continued, "Joel the director kind of went, 'oh...' and I went, 'Okay, I'll trim it.' So I went into the hair and make-up department - it was their lucky day - and I said, 'Do you have a beard trimmer?' and they said, 'Yeah' so - I don't know if they used the beard trimmer afterwards...
"So I went into my trailer and I got a bin and I put it there and I sat over the bin and I got the beard trimmer and I trimmed the right side and I kind of overshot the mark a little bit so I had to get back and approach the right again and I overshot that.
"And at this stage I was sweating and then I went back in and approached the landing on the left and I looked down and I had a little landing strip, a lovely little landing strip."
"I didn't get my full frontal after all."
The story earned Colin a cheque for $10,000 for his son James' school which he attends alongside other children with special needs as well as typical children.
"He's educated alongside and socialises with his typical peers and typical children get to experience the kind of compassion that can sometimes arise in a person encountering somebody with special needs," revealed Colin.