Open this photo in gallery: Mikey Madison accepts the award for best lead performance for 'Anora' during the Film Independent Spirit Awards, on Feb. 22, in Santa Monica, Cali.Chris Pizzello/The Associated Press Sean Baker’s “Anora” won best film, best director and best actor for Mikey Madison at the Independent Spirit Awards on Saturday in what could be a preview of next Sunday’s Oscars: The film about a Brooklyn sex worker and her whirlwind affair with a Russian oligarch’s son has emerged in recent weeks as an awards season front-runner. The Spirit Awards, held in a beachside tent in Santa Monica,...