"Strange Boarders opens with an absolutely magnificent sequence that ranks with the best of Hitchcock and Lang: a little old lady is accidentally knocked down by a bus, and in her shopping basket are found documents that link her to a network of spies, operating from a quiet London suburban street. Thereafter this spy tale from an E. Phillips Oppenheim novel remains deftly entertaining. It's a delightful comedy-thriller quite undeserving of its obscurity. Writer Sidney Gilliat (who had just scripted The Lady Vanishes for Hitchcock) was praised for one sequence by Hitchcock-who filed it away and re-used it a few years later in his Saboteur in Hollywood!" William K. Everson