Radcliffe stars in a kissing scene with Katie Leung in "Harry Potter and the Order of the Phoenix," which opens July 11, The Telegraph reported Monday.
"Kissing Katie was a very comfortable experience especially when compared with being naked on stage and blinding horses, which I am sure Katie will be relieved to know," he said.
At a prerelease screening of the film the actor also insisted that his seven years as "Harry Potter" haven't turned him into an arrogant celebrity, The Telegraph said.
He thanked his parents and own mindset for keeping his feet on the ground and avoiding the arrogance that can come with being a star.
"I define a celebrity as someone who is famous but the things they enjoy about the fame is the parties and the glamorous type stuff which I don't," Radcliffe, who departed from the Potter films earlier this year to play a role in "Equus" involving nudity, swearing and smoking, told The Telegraph.