When "Dirty Harry" interviewed "Invisible Obama" at the Republican convention Thursday night, Clint Eastwood gained a new kind of fame, as the butt of jokes all over the Twitter-verse. "Idea for a cable drama: Clint Eastwood is a hard-boiled cop that sees his dead partner in every empty chair. It's called 'La-Z Boys in Blue,'"read one tweet. "Give Clint Eastwood a break. ...The RNC asked him to speak about ObamaCare and he thought they said ObamaChair," read another. The actor's mock interview of an empty chair purportedly representing President Obama turned into one of the most-talked-about events of the entire...