'Third Person' at the mercy of a mix of emotions, stories

"Third Person," the latest interlocking puzzle from Paul Haggis, is about love. But it's not a soft and fuzzy sort of love. As Leona Lewis put it in the pop hit a few years ago, it's the "you cut me open and I keep bleeding, keep keep bleeding" sort. Haggis uses a double-edged sword -- and a...