You'd have to be the world's biggest grouch to dislike a movie like The Fighting 69th. For starters it's got James Cagney as a smart-aleck from Brooklyn--can't go wrong there, can you?--and then you've got Pat O'Brien second-billed in a sentimentally iconic role as Father Duffy, the beloved and much-decorated real-life chaplain of the legendary Irish-American army regiment of World War I. ...