Actor Bill Murray is photographed at the Waldorf AstoriaAP

Director Ivan Reitman has written the script and seems ready to roll on the third part to the "Ghostbusters" franchise, but Bill Murray, speaking to Howard Stern, admitted that he hasn't read the script.

The participation of Murray is integral to the movie, and although Reitman has sent him the script Murray said that is as far as it has gone.

He told Stern, "Yeah, Ivan wants to make it and I... I owe him, ya know," Murray said.  "He's puzzled that I haven't gotten to this one.  Well, it may not be on the desk -- it's over there somewhere.

"Well, I'll get to it... I gotta get to it. I feel bad.  I got a message and I think people - I don't want to hurt anyone's feelings - it's not the foremost thing in my mind, so I don't think about it. You know, the studio gets excited every 10 years or so."

Unfortunately Murray doesn't seem to share Reitman's enthusiasm for the franchise which made him a household name. In fact he admitted that he didn't really want to make the second movie.

He said, "You know, I only made one sequel, ‘Ghostbusters II,’ and it didn’t end up the way it was presented. About five years after we did the first one, the clever agents got us all together in a room, and we really are funny together."

Murray seemed so unenthusiastic that when Stern questioned whether he would mind if a new "Ghostbusters" team was put together he said, " It’s not a threat. It’s sort of businesslike. They’d like to keep it going. I mean, it’s still an amazing … there’s still kids today that watch this movie. They still sell a lot of toys and everything."