Tip-Off Girls is a worthwhile entry in Paramount's "FBI" series, based on the various writings of J. Edgar Hoover. The title refers to a group of pretty young women who are ordered by their gangster bosses to pick up tips on incoming merchandise shipments, thereby expediting a sophisticated hijacking operation. The girls are also expected to keep the freight drivers occupied while the crooks go about their business. G-Man Bob Anders (Lloyd Nolan) eventually smashes the racket with the help of decoy Marjorie Rogers (Mary Carlisle). Equipped with a Greek accent this time out, J. Carrol Naish plays the supposedly respectable head of the hijackers, while the rest of the cast is populated with such reliable Paramount stock-company players as Roscoe Karns, Buster Crabbe, Anthony Quinn, Benny Baker, Evelyn Brent, Irving Bacon and Stanley Andrews.