▶ Trailer The Mystery of Mr. X 1934 ★★★★★3.4 CrimeMystery A sophisticated jewel thief tries to prove himself innocent of a string of cop murders. Cast Robert MontgomeryNicholas Revel Elizabeth AllanJane Frensham Lewis StonePolice Superintendent Connor Ralph ForbesSir Christopher Marche Henry StephensonSir Herbert Frensham Forrester HarveyJoe Palmer Ivan F. SimpsonHutchinson Leonard MudieMr. X ← All movies
