Transcript for James Franco on Asking Out Teen: 'I Used Bad Judgment'
Sometimes celebrities forget everything on social media is on the record. Actor James Franco seems to be learning that the hardware, after he made overtures to an underaged fan. James Franco got hot and heavy with a group of underaged girls. I just fell in love with you. But this week, life seems to be imitating art. I guess I'm just a model of, you know, how social media is tricky, you know? It's a way people meet each other today, what I learned, you don't know who's on the other end. I used bad judgment and I learned my lesson. So the question tonight, is Franco having more fun, a hoax perhaps, or did the 45-year-old really try to hook up with a 17-year-old girl on instagram. It all happened Tuesday night after he was signing autographed of his Broadway show "Of mice and men." He asked a scottish lass to tag him. She did and he got in touch, asking how long will you be in New York? She replied a few days. It's my 18th birthday present. You're 18, he asked? Whoer you with? Do you have a bf? That's when things get even weirder. Her answer, I'm nearly 18. My mom and not if you're around. Franco wanted more, asking for her number. But this clever girl needed proof. It all sounded, quote, dodgy. Franco obliged texting her not one, but two selfies. One with her name written on a piece of paper and yes, you're more. You're single, he asked? What's the hotel? Should I rent a room? Still skeptical, the teen replies, I'm come back when I'm 18. If it's a hoax, the purpose is to promote his movie coming out the same day as the trailer was released that deals with the same subject matter, an older guy inappropriately dating a much younger woman. That's right, in Franco's new movie "Palo alto" he plays an older soccer coach that gets involved with one of his 14-year-old players. This isn't the first time we've seen possible hoaxes used to promote a movie, but it's the first time that an actor has done something allegedly so sleazy in the name of a hoax. Franco, a self-promoting hoaxster? Method actor? Or a guy who made a strangely well timed mistake? We'll let you be the judge. For "Nightline," Lindsay Janice, New York. I'm not sure I'm buying this. But the age of consent in new York is 17.
This transcript has been automatically generated and may not be 100% accurate.