Marty McFly (Fox) is a typical twentysomething Hollywood teenager (sic), whose quarrelling parents, vindictive schoolmaster and general angst give him cause for concern.
Befriending the local neighbourhood mad scientist, Dr Emmett L Brown (Christopher Lloyd), he becomes involved in a time travelling experiment that sends him back to the 50s, and the high school days of his parents. His presence manages to interfere with their nascent love affair and they split up, but he realises he needs to get them back together in order to have any future himself.
From the Spielberg stable (he executive produced), directed by Robert Zemeckis (Romancing the Stone), Back To The Future is a film that has 'feel good' running through it like a stick of rock. Fox (then known primarily for TV's 'Family Ties', who took over from original choice Eric Stoltz) and Lloyd put in performances that make them almost impossible to dislike.
The De Lorean time machine-cum-car and special effects date it slightly, but this is a film almost unique for 1980s Hollywood, one that is charming, clever and genuinely weird (check Crispin Glover's discomforting turn and the undisguised Freudian plot).