It started as a proposal for a TV pilot, then became a hit movie, then became a TV series. The 1995 film written and directed by Amy Heckerling is a work of such unadulterated charm as to be a rare animal in the Hollywood genus. A Beverly Hills high school reworking of Jane Austen’s Emma, that well-meaning if slightly gormless (but innately intelligent) do-gooder heroine, reinvented as Cher Horowitz, this sweet comedy became an unexpected crowd-pleaser and its dialect entered the modern language. Alicia Silverstone was a lucky find as Cher: she is a sheer delight in the role which is silly and sincere and serious in equal measure. It was 20 years ago that it first hit our screens. It has never left our hearts. As if.