What I mean by contradiction is, say, that after 24 hours THE ALIEN changes into something completely new. Well, in Aliens, those aliens were there over 24 hours, so therefore they can't exist in the same continuity. But I don't think there will be any contradictions problems wits Aliens, Alien cubed, or Alien Resurrection. AVP will most likely be contradicted, and I have no comment on AVPR (I never saw it), but odds are it will, especially after what I heard about the Predalien's reproduction method.