Transcript for Jackie Chan talks about his most harrowing film stunts and working with Bruce Lee

most well known actors in the world with over 200 films to his credit including "Rush hour," "Shanghai noon," "The karate kid" and "Kung Fu panda." Now his new book "Never grow up" and revealing parts of his personal life that fans have never had a chance to see before on the big screen. So everybody give a big welcome to the one, the only, the legendary Jackie Chan. ?????? Hi. It's so good to have you. Nice to see you, man. Thank you. Have a seat. You know, I love the shirt. I need one of those. Got your initials on it. I have it. After the show, okay? That works for me. Your name is synonymous with Kung Fu and action and all these things, but before you there was Bruce Lee. Yes. And you love Bruce Lee. You idolized Bruce Lee. You had a chance to work with him, but I understand it didn't go so smoothly when you did. At that time, he was a huge star. I was a low class stunt man, you know? I remember that scene he was fight, fight, fight. Suddenly he picked me up on the last one. Then he hit me and then I fell down. Okay. Rehearsal. I come up, boom. Okay. By the time you come in, and everybody's so excited. I was waiting, waiting, waiting. I come back -- I just feel so many stars. Just right here. As a stunt guy, we get used to the hitting. He knocked me down and I can't see what he's doing, you know? I turn around. Right after he walk away, cut. I just tried to get up. I just see -- oh my god. I see him. Oh my god. I pretend. But this hurt, but I'm more hurt and he comes over. Oh, Jackie. Okay. Okay. The whole day whenever filming and every shot he turned around and I said -- every time he would see me, I would just -- So it was well worth it. Yeah. So nice to be hit by Bruce Lee. You have done thousands and thousands of stunts, but there is one that's considered your most famous. It's from the movie "Project a." The clock tower. It's hard to watch, but we have some footage here. That took me almost seven days. Seven days to take one shot. Oh. Oh, yeah. The second one. Were you supposed to land on your head? And we were lucky. We don't have what? How do you say? The sound recording the same time. It was dubbed later. So my young brother picked me up. Jackie, speak the dialogue. I was, like, that -- we'll talk later. Tell us right after. I go out of the camera, I fell. It took me almost two years. Whenever I do this, because my neck was hurt, like, that. I thought you guys used mats and things. Isn't there some magic to film? No. No. That's, like, real. Look. But the insane thing was you created the stunt. Yes. You decided to do all your own stunts. Oh, I can't. And you always do your own stunts. Right. You know the funny thing? My father was there every single day. He played what? The extra every time. For six days, I get up. Son, you can do it. Don't do it. Don't do it. I said, okay. Then the last day, I just told my father. I said, today's a holiday. We're not going to shoot. My father doesn't understand. Then I go up. I still don't want to come down. I looked down and I said, I might hurt my leg or break my hand or something and I keep thinking. Suddenly my big brother says, let's do it. Finally, somebody pushed me to do it. They had, like, six cameras. They were, like, rolling. As soon as he said camera rolling, I forget who I am and I just do it. Wow. You have done all this for our entertainment, and you have had a lot of things that have happened to you. We have a little board here. Yeah. This is of some of your injuries and you know what? You said you made a living doing all your own stunts. You're 64 now. You continue to do all your own stunts. You even -- -- And from my understanding, you said you almost died last week. Yes. What happened? I almost -- I was -- accident always. Easy things I was doing the jet ski and behind me, I'm saving the girl. That's -- that's a big around here. How do you say? The tide. Tide. Water. What's that called? The rapids. The jet ski turned. After it turned, I thought it was over, but I don't -- as soon as you were in there area, the water coming, the whole jet ski flipped. I go down. After I go down, the water just sucked me down. I just keep pushing. The jet ski upside down. I cannot push the jet ski. I said, Jackie, don't panic. I don't know how much water I drink. Just don't panic. Just touch, touch, touch. Slide, slide, slide, slide. Then I come up through a tiny hole. Then I get out and then I see the -- how do you say? The crew and everyone? A bright light? The crew. No. I was in that side. All the crew members were here. They still cannot see me. I see the life guard, the life guy. Life guard. Yeah, and tell behind the guy, under the water. Under the water. I just like -- under the water and everybody just, like, this. I'm still going down. You also don't swim. No. So why do you put yourself in water stunts? I thought jet ski was safe. Then after I turned around, I see the director crying. The water girl, she's here. I said, what's going on? But at night, go back to the hotel and I stayed by myself drinking a tea. I said, wow. I almost died today. This is my life. Wow. Yeah. Interesting life. What a crazy life it is, Jackie. What a crazy life it is. I don't know what to say to this. Our producer said what would you do if not this? I feel like take a swim lesson or something. There are things you could be doing. But you do share so much. In this book we have got right here "Jackie Chan: Never grow up." You talk about some things that are probably hard to write about. Why did you feel it was important to talk about now? Everybody says, wow. Jackie is so good. He's a hero. He's something. No, actually. When I was young, I was a wild boy. You're still a wild boy. I have heard that story before. We had no education. I was a young stunt guy and just every day, fighting on the street, gambling. Nobody teach me the right things and later on, after doing -- I was 20 years old. I was already a millionaire. After the charity -- the charity teach me how to treat people and see the world and how to care about somebody and then I change my personality. I changed my whole life. So I think I should write a book to tell people -- Tell us the whole journey. Jackie is not perfect, but today, yes. The old days are gone. I see so many young children, right now one day becoming a big star like me so I have to tell them. It's a lesson. You are so open in this book about so many things in your life and it's not easy to write about these things. It's not easy to do what you have done, and like I said, you did this all for our entertainment and we got to say. You're one of my favorites. I love you for it. Thank you. Love you for it. You know what, guys? Everybody can pick up "Never grow up," Jackie's book. It's in bookstores everywhere. Make sure you do that.

This transcript has been automatically generated and may not be 100% accurate.