I don’t want to bump an old thread, so I’m posting a link. But I’ve come up with some new ones.
In 9 to 5 (1980), Dolly Parton’s character tells Dabney Coleman’s character that she has a gun in her purse, and threatens to change him “from a rooster to a hen with one shot”. This is because she’s fed up with his “pinching and staring and chasing [her] around the desk”, and has just found out that he’s been bragging that he’s sleeping with her. Would not happen today. First of all, she would be able to report inappropriate actions and remarks to Human Resources. Second, the building might have metal detectors, and even if it didn’t, there would be a rule prohibiting bringing firearms into the office. Third, he would be able to report her, for threatening him, and she would be fired for the compound of the threat and the concealed weapon.
Book example: In one of Lawrence Sanders’ Deadly Sins novels, which would be from the '70s (I think I remember checking the publication date against this: 1977) Chief Delaney asks a doctor something about blood types, skin matches, and like that. At the time, it must have been realistic for an MD (or maybe he was a medical researcher) to say, “Oh, yeah, someday they might be able to ID people by their DNA…but I don’t see it happening in my lifetime!” Now DNA identification is about worn out as a device. (Side note: I love how, on last season’s Sopranos, AJ panicked and admitted everything when his school’s principal said, “We have your DNA.” It took Meadow to tell him that it takes six weeks to get DNA results, and that’s if they have a sample for comparison!)
Kind of the reverse: something that was startling at the time, but seems perfectly normal now. In Night on Earth, Gena Rowlands is a casting agent who carries a cell phone, and her immediate boss is constantly calling her. “How awful,” I thought in 1992. “She’s never free; she can’t ever avoid him or claim she was too busy to get back to him.” Now everyone has a cell phone, and there’s less of an expectation that you’re at someone’s beck and call (so to speak) just because they can reach you easily. And people have learned to say, “Sorry, I had to turn it off…did you talk to my voicemail?” From today’s perspective, she merely has a high-strung boss, but at the time, the phone was meant to be a millstone.