The Harry Potter star suggested maybe people still find "sex with a man" surprising on the big screen, and he knows his past in the wizarding saga will give them preconceptions going into the movie.
He added: "It is just the fact that it's sex, and it's sex with a man, I guess. It's amazing how shockable the world still is. And it's Harry Potter."
Radcliffe , 24, has recently explained his decision to take on the role despite his early success, and noted people's reactions to the "beautiful" sex scenes may be unwarranted.
He previously said: "I felt like I was breaking new ground.
Most actors grow up doing a lot of small movies and then get something big, but I started on the biggest film in the world.
"So it's an experience that I haven't had. I'm sure some people will be slightly ... err ... startled by the gay sex scene though ... It's actually not graphic. You don't actually see anything.
"What's graphic is the emotion of the scene. It's a very vulnerable, slightly afraid moment. It's beautiful and tender as a consequence of that."
"We shot it so fast. We only had an hour to shoot the whole scene. Because the whole film was shot so quickly, there wasn't any time to get nervous or worried," he recalled about the clip to website entertainment.inquirer.net recently.
"You just go for it! In both that scene and the sex scene I had in the movie Horns, with Juno Temple, most of the time off-camera was spent laughing. It was not particularly stressful. It was funnier more than anything else."
Meanwhile, Radcliffe told Us Weekly he shares Ginsberg's of literature.
"Just talking about poetry is very fun for me," Radcliffe said.
"I don't understand it as well as (Ginsberg), but I do understand poetry, it is an interest of mine. I've read the same books as him."
Radcliffe said he and DeHaan became good friends during filming.
He has the utmost respect for DeHaan and appreciates their tight relationship.
"After auditioning with Dane, one of the biggest draws for me was working with him," Radcliffe said.
"Dane is the best friend I've made through acting, through the industry. He and his wife are just fantastic people. I think that building chemistry with people is just about being curious about people and meeting them."
- additional reporting by Cover Media
