Former CBS Anchor Dan Rather thinks the movie about him, called Truth is the best thing since sliced bread.

CBS boss Les Moonves does not. 

The movie which stars Robert Redford as Dan Rather is about the memogate scandal that ended up costing Rather his job.

After seeing the movie, Rather praised the film's accuracy and its (very sympathetic) portrayal of him.

Go Figure.

But, Moonves got a sneak peak at the movie months ago and his reaction was much different.

The Hollywood Reporter writes that a source close to the film says Moonves wasn't a fan of Truth, but, ever the gentleman, he didn't ask producers for major changes, and a CBS source says the network isn't planning to publicly lash out at Sony Pictures Classics' Oct. 16 release (any challenge from those depicted would only provide more publicity for the film, of course).

CBS mostly comes across as the villain in Truth, with news chief Andy Heyward appearing to fire Rather (Robert Redford) and 60 Minutes producer Mary Mapes (Cate Blanchett) to appease the George W. Bush White House and protect CBS' bottom line. 

Still, Moonves and staff were heard at CBS headquarters dismissing the movie as "half truth." CBS declined to comment.