Released in 1974, the original Texas Chain Saw Massacre was partially inspired by the real-life crimes of Ed Gein, who was nicknamed the 'Butcher of Plainfield'. With a shoestring production budget of around $140,000, the classic slasher film had to deploy budget-cutting techniques that were almost as frightening as the movie itself.
This included using animal blood and bones to dress the set, which quickly began to stink in the sweltering Texas heat; the actors also had to wear the same dirty clothes for days on end to maintain continuity. Perhaps most shockingly of all, actress Marilyn Burns, who played Sally, had to have her finger sliced open for real during her spine-tingling scene with Grandpa.
By the end of the punishing 32-day shoot – which saw the actors work around 16 hours a day to ensure it was completed on time – director Tobe Hooper claimed that everyone involved hated him. Audiences, however, loved chainsaw-wielding villain Leatherface. The film grossed about $30.9 million at the box office, which is around $197.4 million (£156.2m) in today's money. Today, The Texas Chain Saw Massacre remains one of the greatest horrors of all time, inspiring countless sequels, spin-offs, and reboots.