Watch full movie online. Robert Zemeckis's Back To The Future was a huge box-office hit in 1985 that ultimately led to two sequels. In 1989, in Back To The Future Part II, Michael J. Fox aka Marty Mc Fly and Christopher Lloyd aka DOC, travel into the future to October 21st 2015. At the time, the movie's crazy inventions seemed far from achievable but little did we know they would actually be so close to reality!