Dakota Johnson has good cause to be anxious, yet her calm, lighthearted attitude, soothing, honeyed voice, and various, low-key enthusiasms might lead you to believe otherwise. Johnson, who came to fame as an actor with the “Fifty Shades” trilogy and is currently starring in the awards season contender “The Lost Daughter,” also has two projects screening at the 2022 Sundance Film Festival, which opens Thursday in a virtual version for the second year. In addition, the projects are the first finished films produced by her company, TeaTime Pictures.