great little thriller . i be expect some type of silly horror movie but what i get be tight short thriller that waste none of our time . mostof these movie we have to get into the back character story so we will either feel sympathy for them or hatred when people start get kill . o such foolishness here . yes you see a few character but they really only interact with the principal . such a the husband wife at the motel whose room be cancel . we saw them so we could just how efficient the lisa character be and how inefficient the new hotel clerk be . we see the little girl simply because she will have a very small but important role later in the movie when all heck break loose . the flight atrendants because we need on in particular to move the plot ahead . the bad guy in particular need her in the beginning of the flight . the rude guy in the airport be important to the movie too . the only 2 character that be just 5 liner with no use to the plot be the two young guy on the plane . that be clever because i think they would have something to do with plot . from the first scene to the last the woman character a young hotel executive name lisa be in charge . even when jackson show his true color she doesn not panic . she think what she can do to stall time . any other movie the smart executive woman would be act like idiot . but not this one . it be a very short movie and i be wait for the usual plot device to kick in because the movie seem to be come to it conclusion fast . thankfuly none of them be use . the new hotel clerk do not do the usual called and tell her what to do and which be panic drop the phone and run out of the hotel without say anything and or question your bos and tell her she have to much to drink and just dismiss her . be craven should do more of these type of movie . also one last comment . brian cox be in the movie but i have not one clue who he be . i have to come over here to see that he be lisa father . he be completely unrecognizable .