A few years ago, I wondered why one of my favorite actresses suddenly seemed to look disarmingly perfect. At first, I thought it was that she had new makeup or a different haircut. But then I looked at some earlier pictures of her and realized that she'd probably had a rhinoplasty, among other things. Part of me was sad, because she'd already been gorgeous—just not, apparently, gorgeous enough.

Along those lines, the new issue of Radar is all about the proliferation of cosmetic surgery in Hollywood. The cover story is pretty interesting reading, especially if—like me—you've noticed some subtle changes on some of your favorite stars over the years. For actors and actresses, scoring big roles can be impossible if you don't look the part. And so, Hollywood is portrayed as a place where just about everyone—A-listers, D-listers, producers, even realtors—is getting a tweak here or there:

Everybody lies about it," says actress Julie Bowen (Boston Legal, Ed, Lost). "The men I know are a bit more open, but the girls will lie and lie and lie, even though you're staring right at their scars."

For every Heidi Montag who eagerly talks about her surgery, there seems to be a Nicole Kidman, who insists that the Botox rumors are purely lies (and who is not gonna like that cover illustration). While makeup and lighting can play a huge role in changing someone's appearance—for instance, Tyra Banks expertly uses makeup to contour her nose—sometimes the change is too drastic to chalk up to that.

Plastic surgery isn't going away, at least not in the entertainment industry. The question is, at what point does all of the "perfecting" go too far? And how does it affect the way regular people feel about their own appearance?