Apparently in the film industry, goodbyes are considered inefficient.According to screenwriter Josh Olson, "It's possible that some filmmakers think it slows down the action if characters say things like, hello, goodbye and 'Sorry, I have to commandeer your car for the sake of homeland security.'"Many filmmakers believe that although it’s natural to end a real-life call with “goodbye,†in a movie, it’s awkward and a waste of precious screen time.