Pop quiz: Why has John Cusack jumped into the political arena with a video saying John McCain is a clone of President George W. Bush who would continue policies the actor says benefit war profiteers?

"I know my opinion doesn't matter more than anyone else's and I just make films," he told The Associated Press in a phone interview Wednesday. "But I do feel you have to speak out, and that's what I'm doing."

The 30-second video, which went...