极度危险Dívka na koštěti or The Girl on the Broomstick is a 1972 Czechoslovak fantasy-comedy film directed by Václav Vorlíček. It tells a story of a teenage witch, Saxana (played by Petra Černocká), frozen in time as a punishment for 300 years, who finds herself in a modern world. A sequel was released in 2011 - Saxána a Lexikon Kouzel.