The question isn’t whether the service will be provided, but whether it will be delivered to the right people—in this case, the guests and their nuts. W. S. Van Dyke directed The Thin Man, with Albert Hackett and Frances Goodrich sharing writing duties based on Dashiell Hammett's novel. William Powell and Myrna Loy lead the cast, supported by Maureen O’Sullivan, Nat Pendleton, Minna Gombell, Porter Hall, and Skipp…