The plot is generally interesting, following the very fun ship-gets-taken-over-by-monsters formula. As well, the 2D animation for the first three characters' memories were great and meshed very well with the grotesque violence. However, the last character's 2D animation seemed to be a bit disconnected, completely removing the most horrifying features of the necromorphs and reducing them to generic monsters. Even worse was the 3D animated segments that interlace the entire film: they're an eyesore. To think a film so ugly could come out in 2011 is upsetting.