I don't want to keep it as unknown, I just hoped that someone who watched the movie can say if the directors tried to search for a bit of accuracy concerning the vehicles. If so, they should have indeed used a Reo or a Kaiser-Jeep model, as the action apparently takes place in the 1960s. If not, an AM-General is also possible, as it was certainly the easiest model to get in 2001. Trying to obtain the most accurate identification implies taking all details into consideration, for me, or it's just a coin toss and can't then be seriously called an identification.
But whatever the make, we shouldn't neither say "it's a
Something" without writing/indicating somewhere that it is a default identification.
Incidentally, Mike932's hysteria about unknown vehicles becomes more and more boring: his last "reactions" occurred after only 10 to 48 hours. Is this such an eternity?