Harry Potter star Daniel Radcliffe is seen in this undated handout publicity picture for "Equus", a play in which Radcliffe plays Alan Strang who has a passion for horses. "Equus" opens at The Gielgud Theatre Theatre in London on February 27, 2007. [Reuters]

"We as parents feel Daniel should not appear nude. Our nine-year-old son looks up to him as a role model. We are very disappointed and will avoid the future movies he makes," one parent wrote.

Another said: "I am curious as to how and why his parents said this was okay."

Some of his younger fans, however, are impressed with Radcliffe's tough new look.

"I am completely stunned by these pix," wrote GinnyPotter on fan site danradcliffe.co.uk.

"He is no longer the shy boy in the prefects' bathroom anymore. His body is ... I can't even say or I will no doubt be banned but he has grown a lot and I am very proud of Daniel."

Another wrote: "When I saw it I couldn't breathe for a moment. I was shocked. But (the) pictures are very cool and very good. I like it ... They're awesome!"