I believe a xenomorph cameo is owed, Why ill tell you why because prometheus was buil around the alien fans , we were the ones from the beginning attached to prometheus , not to mention that letter tha came with the alien anthology from scoot him slef explaining his filming a alien prequel and no the deacon doesn't count ,its nice but at that moment i wanted to see more and the movie ended. In short im not seeing this film in theaters because theres noxenomorph cameo and two ill read reviews before , make up my mind on weather i shoul buy the blu ray , if the film moves further from alien like explained , count me out of everything