Clint Eastwood addresses the Republican National Convention in Tampa, Florida (AP)
Actor and film director Clint Eastwood has earned plenty of bad reviews for his latest performance - a bizarre, rambling endorsement of Mitt Romney.
"Clint, my hero, is coming across as sad and pathetic," tweeted film critic Roger Ebert as Eastwood ad-libbed to an audience of millions - and one empty chair - on stage at the Republican National Convention in Tampa, Florida. "He didn't need to do this to himself. It's unworthy of him."
Eastwood carried on a long-winded conversation with an imaginary president Barack Obama, telling him that he failed to deliver on his promises, and it is time for Mr Romney and his running mate, Paul Ryan, to take over.