“Trouble with the Curve” is Clint Eastwood’s first time in front of the camera without also being behind it since 1993’s “In the Line of Fire.” Unless you count his performance last month at the Republican National Convention, that is.

Those who don’t agree with Eastwood’s politics — and even some people who do — mocked his monologue with an empty chair, wondering if the old man had finally lost it. He hadn’t. And “Trouble with the Curve” proves it. Thank goodness the man reneged on his vow to quit acting after 2008’s “Gran Torino.”