“You have my undivided attention, young lady,” Maxwell Caulfield says bemusedly, as he notices my Grease 2 T-shirt. The British stage actor’s big-screen debut took place 40 years ago, when he was cast as the Cool Rider, aka Michael Carrington, in Grease 2. He actually once blamed Grease 2 for derailing his promising theater career, but he has finally come to terms with its legacy, and he appreciates that film has amassed a devoted underground following which, of course, includes myself.