Doug Liman has committed to direct the Warner Bros. sci-fi project All You Need Is Kill, reports Variety. This solidifies a report from back in June that hinted Liman was circling the ambitious project; now it would seem as though the Mr. And Mrs. Smith director has finally signed on the dotted line. Variety doesn't offer many details other than that Liman has officially moved from the WB version of The Three Musketeers (which is competing with Paul WS Anderson's adaptation of the same material) to All You Need is Kill.  Dante Harper adapted Hiroshi Sakurazaka's novel, and there's no mention of a rewrite.