03A Pepsi Free
Diners are now a thing of kitsch culture, especially those that double down on the ‘50s-era throwbacks. For Marty, when he arrives in the downtown area of his hometown, Hill Valley, 30 years before he was ever a teenager, he’s stunned to enter an authentic ‘50s diner. In fact, he's so stunned that every method in which he tries to order a drink is met by a flummoxed and annoyed diner owner. “How about a Pepsi Free?,” he asks, not realizing until it’s too late that the Pepsi Free, better known as caffeine-free Pepsi, wasn’t introduced until the 1980s. “You want a Pepsi, kid, you gotta pay for it,” the diner owner snaps at him. Here, as in other cases, Marty takes too long to grasp that his new way of life is a lot different than it was in the ‘80s.
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