I saw this just after it had first been released. Time has not changed it (or it's impact) as l watched it again this evening with the FPO, and she loved it, even though the rewind part and breaking the 4th wall bits took her by surprise. A family get terrorised by two young lads, who are pretty damn crazy (and wear cool white Converse All Stars). Another film that does not end happily (but is excellent). Why is this never included in critics lists of top films? It is superbly acted, life like, and has unexpected twists (which are unusual in a film, as they are real to life). Superb and highly recommended.