Transcript for James Franco says it was 'bizarre' staying in character to direct and act in 'Disaster Artist'
And now we've got a fantastic guest we're going to bring to the table. So talented, this guy, Oscar nominated actor who says if they ever make a movie about him he wants his brother to play the lead. I like that. Well, he and his brother are teaming up now on the big screen. Please welcome "Disaster artist" James Franco. Congratulations. Good to see you, man. Good to be here, man. Always. All right. You have one of the best smiles ever. I did get best smile in my high school yearbook but I had braces at the time so big smile like this. You know what, congratulations on everything. You're so talented. Yes, this movie -- This movie is getting a lot of buzz. It's about the making of a movie called "The room" which was called the best/worst movie ever. "Scitizen Kane" of movies. You haven't gone. Not to midnight screenings. I'd fall asleep. Were you one of those -- people -- I was not. So it's been playing for 14 1/2 years. Once a month in almost every major city. It plays in London, Paris, Tokyo and the guy, Tommy, he goes around and he is like -- he's like the king -- they get so excited. What's his deal? That's exactly the question. What is his deal? Well, there's three mysteries about Tommy, okay. How old he is because he said he was in his 20s when he made "The room." He's probably in his late 40s. Where he's from because he sounds like this. I played had him in the movie. He sounds like this which you will guess is maybe like eastern Europe but he say he from new Orleans, all-American guy. And then where he got the money because "The room" despite looking like it was made for $60 cost $6 million. And he -- he financed the whole thing. He says it was from his like Levi's Jean selling outlet but I'm like, Tommy, there's no way you sold $6 million worth of jeans and he's like, James, you embarrass yourself. You don't know anything about retail. I'm like, okay, Tommy, so -- It's hard -- you direct and star. You have to stay in character throughout. How do you do that? It was -- I'm sure it was more bizarre for everyone else. My brother and Seth rogen, and everyone but I was -- I was directing the film. I was acting in it, playing a character that was a director acting in his own movie. Directing the film, did you talk like Tommy. I talked like Tommy. So I'm sure it was bizarre but it also like set an atmosphere because they were all playing arcs in Tommy's movie so it just sort of like -- I think it made it easier. They -- like we had a lot of cameos, we had like Bryan Cranston, Sharon stone, Melanie Griffith. All these incredible people. But every time -- and like every great comedian around Hamel Bure Buress, my brother and Seth would prep them. Okay, the set isn't Normal. James is directing in character. Quickly we want to show a clip. Tell them one of the people that came to visit was Seth's grandparents. Okay. You've known Seth. You guys have known each other for 20 years. Yes. Tell everybody the story really quick. Well, obviously -- Seth brings his family to every set, the grandparents, parent, his wife Lauren and they know me and like they did not get it. Because it was like 2 1/2 hours of prosthetics every morning and they were like where is James? And Lauren, his wife who I've known almost as long as the grandparents, she just wasn't having it. She hated it like I was dead to her for like three months like she just did not want to be around -- Do you guys want to see some? Yes. No, no -- ? I'm hearing an eastern European accent. No, that's from New Orleans. Where? New Orleans, you heard -- you know. Where? The big easy. Oh, New Orleans. I thought -- I didn't know what you were saying. Yeah. Can we just try to lose the accent? Take it again. What is Tommy think about all this? Tommy like talked about is a bit of a mystery, an enigma but I think he loves it. I asked him finally like he didn't want to watch it alone. We were going to screen it for him alone. He wanted to watch it with a thousand people at south by southwest for the first time. It was fortunately like an incredible screening but he sat there with the glasses on in the theater watching the thing and he wasn't making any reaction. I was like, oh, man, maybe he hates it and I asked him after. I was like, okay, what did you think. Well, I approve 99.9%. And I go, what's the -- then I go what's the 0.1% you think he'll be like I never said that or never did that. He goes, director to director he goes, I think you should look at lighting in beginning of film is a little off. And I'm like -- I realize, I realize he's wearing the glasses the whole time. I tell you what, you've created another classic. Thank you. You know that. You really have. It is the "Disaster artist." It is in theaters now.
This transcript has been automatically generated and may not be 100% accurate.