Mikhail Baryshnikov celebrated the opening of “Man in a Case” at the Cutler Majestic Theatre on Wednesday night. He was joined by costar Tymberly Canale, philanthropist Ted Cutler and Ted’s daughter Ellen Calmas, who’s the executive vice president at Neighborhood Pay Services. Baryshnikov Productions’ “Man in a Case” runs through Sunday.Mark Shanahan can be reached at firstname.lastname@example.org. Follow him on Twitter @MarkAShanahan. Meredith Goldstein can be reached at email@example.com. Follow her on Twitter @MeredithGoldste.