Trainspotting is a harmless, middle-class exercise; Trainspotting [the film] is a rejection of all things harmless and middle class — at least until its final twist, which amounts to a simple, weary acceptance of what we all must learn in making peace with adult life. It may be that if you don’t see Trainspotting when you’re young, you won’t get it, but to what young person has it not occurred that following the rules is a dead end, a surrender to all things mediocre and dull?