Call it the Covid Exception. Back in the virtual Sundance Film Festival of 2022, the world was in the middle of an Omicron surge when Oscar perennial Searchlight and its streaming partner Hulu acquired Sophie Hyde’s “Good Luck to You, Leo Grande.” The film scored raves for Best Actress Oscar-winner Emma Thompson (“Howard’s End”), who plays a widow who hires a sex worker (Daryl McCormack of “Peaky Blinders”) to teach her about sexual pleasure.