Why do aliens land in LA or New York? Why not in Hemel Hempstead?
Where were the loos on the Starship Enterprise?
How come the guys strumming a guitar on some step know the chords of the song that Elvis wants to sing?
Why does the hero leave the heroine in a locked room to go off and hunt down the monster and then the monster gets into the room through a window and makes off with the heroine?
Why do the group of innocent teenagers explore an old dark house?
Why does the bogeyman who limps and walks slowly...