Julianne Moore hit the red carpet with a stylish grace at the world premiere of her new movie Dear Evan Hansen.The 60-year-old actress plays Heidi Hansen, the mother of Ben Platt's title character in this Broadway musical adaptation.She was spotted at the premiere, held at Roy Thomson Hall in Toronto on Thursday, alongside cast members Amandla Stenberg, Ben Platt, Colton Ryan, Danny Pino, Adam Siegel, Nik Dodani, director Stephen Chbosky and writer Steven Levinson.