Being aware of the camera
One of the worst loses of disposing of Golden Age Hollywood glamour and techniques was the loss of a seamless camera. You never felt you were watching a movie but instead reality, since the camera never called attention to itself. Now filmmaking is so clumsy that the camera is ever present. They don't know how to shoot any other way. I don't know what is the term for it but I'm talking about useless shots that only serve to suspend disbelief.
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