GOIN' DOWN THE ROAD FEELIN' BADBy Billy CoxDe Void3-18-11 I've got nothing against shoot-em-ups. I thought it was cool when the Guggenheim Museum got shot to pieces in "The International." I liked what happened to Hitler in "Inglourious Basterds." I just don't want insulting or stupid. And I knew, going in, that "Battle: Los Angeles" was gonna be a dog.The trailers had "this sucks" splashed all over them. Sixty-seven percent of Rotten Tomatoes critics went thumbs down; naturally, moviegoers gave it a 65 percent approval rating on the Tomatometer and made sure "Battle: Los Angeles" was last weekend's big box-office winner. Ain't that America.Yet,...