I don't watch TV talk shows very often, but when I do, I like seeing movie stars come on to talk about their latest "project." It's never really a conversation, though. I mean, they have an agenda to push: they want to talk about how wonderful the movie is, how talented the director is, how much they enjoyed playing the character, how proud they are of the final product, etc. If the movie has gotten terrible reviews, or the actor flogging the movie has gotten lousy reviews, OR the movie is already out and is tanking at the box office...well, the host is not allowed to mention that stuff.
I'd like to see that change.
Imagine, for example, Reese Witherspoon going on Jay Leno to talk about "How Do You Know," and saying the standard stuff: "It was such a thrill to work with James L. Brooks. I mean, he writes really strong, interesting female characters. Those roles are hard to find." And then Jay would say, "If you look at the reviews, though, a lot of critics seem to think he's lost his touch...that this movie is really just a bad, feature-length sitcom, and that your character in particular is unrealistic and unlikable. They say, too, that you're such a likable actor by nature, you're not really believable when you try to play someone unlikable. How do you respond to that?"
Of course, Jay would never DREAM of saying that stuff. But it would make for much better TV if he did.
Footnote: Or think about Angelina Jolie on Conan O'Brien's couch. He says to her, "Were you surprised by your Golden Globe nomination for best actress in 'The Tourist'? A lot of the critics said you were really just a mannequin holding up gorgeous clothes in exotic locations. And yet, you got a nomination anyway. Talk about that..."