PARK CITY, Utah — Gwyneth Paltrow’s lawyer called the story of a retired optometrist who is suing her over a 2016 ski collision “utter B.S.” on Tuesday during the trial’s opening day in Utah, where the actor-turned-lifestyle influencer appeared in court, and tried to shield herself from photographers’ view with a notebook.Paltrow and Terry Sanderson, the man suing her, sat across from each other in a Park City courtroom as their attorneys gave opening arguments detailing the crash. Both …