This week we are joined by bestselling novelist Matthew Pearl (“The Dante Club,” “The Poe Shadow”) and we talk about his research into Eliot Ness and the connection he made between “The Untouchables” Odessa steps sequence and the climax of the original “Mission: Impossible.” We discuss other connections between the films, go over some unused script pages, and Pearl brings up a fascinating “Mission: Impossible – Rogue Nation” mystery.