Lady Gaga will star in an untitled Ridley Scott movie about the murder of Guccio Gucci's grandson Maurizio Gucci, which marks the first project she has signed on to star in since winning an Oscar for A Star Is Born. Gaga will play Patrizia Reggiani, who was tried and convicted of orchestrating her ex-husband’s assassination in 1995. She served 18 years of a 29-year sentence before being let out of jail in 2016. Scott is directing from a script by Roberto Bentivegna, based on the Sara Gay Forden book “The House of Gucci: A Sensational Story …