Now, Arlekin brings its Lucille Lortel award-winning production of “Our Class,” written by Tadeusz Slobodzianek and adapted by Norman Allen, to the Calderwood Pavilion June 13-23. The true story of a shocking betrayal within a small Polish community, the play drew from the book “Neighbors” by Jan T. Gross, which came out in 2000, as well as historical accounts. Arlekin brought its production to the Brooklyn Academy of Music as part of the Under the Radar Festival in January 2024 and reprised it at the Classic Stage Company in New York in September. “Our Class” introduces 10 twentysomethings — five...