There's plenty to keep Marty busy here, in other words, and it's impressive that for a movie hailed at the time for its special effects, "Back to the Future" gets so much done without them. In our Marvel-"Transformers" era, when every minute of every blockbuster is saturated with CGI, we can only imagine how a 1985 audience would have really anticipated the spectacle of a DeLorean vanishing down a strip of pavement. "When this baby hits 88 miles per hour," Doc Brown tells Marty, "you're going to see some serious shit." That shit might not look like very much today, but it's a reminder that movies can still draw without piling on the explosions, collapsing infrastructure, and undulating hordes of robots/orcs/apes. "Back to Future" gets plenty of mileage from a low-speed chase here, a lightning strike there, a Rube Goldberg take, and great costumes and makeup.