In the continuation , Marty and Doc travel to 2015 to prevent Marty ’s son from ruining his future tense . However , altering the event of 2015 creates an alternate reading of 1985 , where Biff Tannen ( Thomas F. Wilson ) becomes the wealthiest serviceman in the nation thanks to a play almanac from the future . To restore the timeline , Marty and Doc head back to 1955 to stop Biff from stop up the almanac and changing the course of study of account .

Watching Marty grab a beverage at the nostalgia - fueled Cafe ’ eighty provide some of the most gratifying moments in the movie . Ironically , Zemeckis hated it . “ For me , take the future scenes of the movie were the least enjoyable of making the whole trilogy , because I do n’t really like flick that try out and predict the future , ” said Zemeckis in a Q&A comment for the film ’s DVD release . In Zemeckis ’ pillow slip , he did n’t presage the future tense ; he create it .

Innovative special effects

While the story inPart IIremains inferior to the original , the sequel ’s special effects are still considered groundbreaking . Zemeckis and his squad relied onIndustrial Light & Magic ( ILM ) , George Lucas ’ animation computing machine studio , for the peculiar effects . The hoverboard chase is brilliant — an enthralling scenery with dissipated action , slapstick comedy , and innovative sci - fi .

ILM even created a young system , VistaGlide , to take the 2015 dinner table scene , where Fox played all three character : Marty , Marty Jr. , and Marlene . Having one actor spiel multiple characters in the same setting was n’t unique . However , using the VistaGlide to move the photographic camera and shoot a dynamic fit laid the groundwork for this style of filmmaking .

Marketing strategy to promote a multi-part adaptation is still followed today

One of the most controversial decisions inPart IIrevolved around the close . Part IIandPart IIIwere shot back - to - back , so a third film was hail . However , the marketing in the lead - up toPart IIdid not promote the sequel as the 2d entry in a trilogy . Some moviegoer did n’t even know about the third film until a mystifier house trailer play forPart IIIat the end ofPart II . Gale fought with Universal over this effect .

count atDuneandWicked . Both flick were the first picture show in a two - part adjustment . Yet the films are not titledDune : Part OneorWicked : Part One . This is a measured strategy to make each moving picture palpate like a staring story and one that stand on its own . hearing refuse the whimsy of preparation . Labeling a pic as the first or second part imply more body of work must be done . Mission : Impossible – deadened Reckoning Part Oneremoved part one from the title for these very reasons . Like it or not , Part II‘s promotional scheme still provides the blueprints for marketing a multi - part saga .