Killershas been murdered by most film critics, and the box-office receipts haven't been too impressive either. But that's kind of a bad rap. Granted, it isn't likely to make many year's best (or even month's best) lists, but this is an entertaining little diversion that at the very least offers an appealing cast, a few laughs, and some cool chase scenes. Katherine Heigl plays Jen, who, having recently been dumped by her boyfriend, is vacationing in Nice with her parents (Tom Selleck and Catherine O'Hara). Enter Spencer (Ashton Kutcher), a hired assassin (hey, it's a comedy) who happens to be on the scene for a job. The couple's cutesy flirting turns into a romantic dinner, which leads to some heavy drinking… and before you know it, Spencer has renounced the killing gig, married Jen, and moved back to her hometown in the States, where he becomes a "corporate consultant." Three years later his past catches up to him, as we knew it would, and a seemingly limitless array of hired guns emerges from the woodwork, intent on collecting the $20 million bounty that's been put on Spencer's head. Exactly why this is, and who's responsible for it, are secrets revealed only at the end, although perspicacious viewers will no doubt have seen it coming. In the meantime, Spencer's revelation of who he really is and Jen's reaction to it are mildly reminiscent of the Arnold Schwarzenegger-Jamie Lee Curtis relationship inTrue Lies, as issues of trust, safety, and Jen's newly discovered pregnancy complicate Spencer's attempts to keep the two of them alive while he tries to figure out what's going on. Director Robert Luketic displays a sure hand during the action sequences, but he's working with a thin script and a pair of attractive young actors whose chemistry doesn't exactly burn up the screen. Those are serious drawbacks, but all in all, there are far worse ways to kill a couple of hours than watchingKillers.--Sam Graham