An addition to the one about how the person running from killer/monster always looks back and trips, you also have the one about how, no matter how slow the monster walks, it always catches up with even the fastest fleeing human, who always runs straight down the trail until fatigue hits. Then the victim holds arms in the air, screams and it's all over.
You need a bigger budget to see the victim actually murdered or eaten.
You need a bigger budget to see the victim actually murdered or eaten.