Dumbest movie mistakes

I never understood why people went into the water with that ominous Jaws theme music playing in the background.  One would think that ominous music usually spells bad things and that perhaps they should call it a day instead of heading into the ocean.

Vicious.

Most any Psycho killer movie plot......People are mysteriously disappearing from our group, let's SPLIT UP and go look for them.

Oh, come on! It was a joke!!!

The lead detective is a hard drinking divorced guy that lives and breaths police work and still holds a candle for his former wife who would take him back if he'd only take and desk job and give up the booze. Yeah, right. So cliche.

Oh, and if you're a young detective... NEVER accept an assignment as a partner to this guy 'cause you're either going to get KILLED or shot and wounded requiring a period where your survival will be touch and go but you'll eventually pull through near the end of the investigation but probably won't be able to return to the force.

Eli Wallach in "The Good, The Bad, & The Ugly" had the perfect line for this situation.  He was sitting in the bathtub when a bad guy comes in to shoot him.  Bad guy goes into big speech about how good this revenge is.  While he's blabbering away, Wallach has a gun under the soap bubbles and he drills him before the bad guy can finish, then gives his classic line..."When you got to shoot, SHOOT, don't talk!"

Oh yeah, and I forgot about the screeching tires when a car skids out on a gravel road.  DUH!!