Children's films occasionally have a knack for delivering nightmare-inducing scenes that haunt you for a lifetime. The boat ride in Willy Wonka and the Chocolate Factory. The "Pink Elephants on Parade" musical number in Dumbo. The flying monkeys of The Wizard of Oz. But the one that has always stuck with this film critic is the traumatising moment in 1990's The Witches when Anjelica Huston's Grand High Witch literally peels back her face to reveal the horrifying demon lurking underneath. It's an iconic sequence that likely had parents...