ENTERTAINMENT
03/28/2008 02:45 am ET | Updated May 25, 2011

Robin Williams Thief? Bitter Comedian Rivalries Bared In New Book

In the upcoming book "Comedy at the Edge," which chronicles the rise of stand-up in the 1970s, David Brenner tells author Richard Zoglin he once threatened to attack Robin Williams for stealing his material and using it on HBO. Calling up Williams' agent, Brenner warned, "Tell Robin if he ever takes one more line from me, I'll rip his leg off and shove it up his [bleep]!" Williams tells Zoglin he was simply "sampling" material from others.

Richard Belzer, who plays Det. John Munch on "Law & Order: Special Victims Unit," was perceived as lazy and full of himself by other comics when he would play at Catch a Rising Star. Paul Reiser told the author, "There were nights people would feel very entitled - I'm a big shot and [bleep] you. A lot of near-fistfights. Belzer was one of those guys who was very indulged. He was given the run of the house, whether high or drunk." Added Bill Maher: "I never once saw [Belzer] do a set sober."

Read more book details here