-Painfully over- or under-exposed footage to the point where it's almost all white or all black.
-Out of focus shots, or too shallow DOF
-Music and sound effects used that sounds 135x better than the actual production sound
-Sound off the camera
-Flabby scripts/cutting - not cutting into the action. We don't need to see him pull up in the car, get out, lock the door, walk up the steps, open the door, walk down the hallway, round a corner and sit down at a table unless it is relevant to the story
-Out of focus shots, or too shallow DOF
-Music and sound effects used that sounds 135x better than the actual production sound
-Sound off the camera
-Flabby scripts/cutting - not cutting into the action. We don't need to see him pull up in the car, get out, lock the door, walk up the steps, open the door, walk down the hallway, round a corner and sit down at a table unless it is relevant to the story