Hotel Reserve is a 1944 British spy film starring James Mason as an innocent man caught up in pre-Second World War espionage. Other cast members include Lucie Mannheim, Raymond Lovell and Herbert Lom. It was based on Eric Ambler's 1938 novel Epitaph for a Spy. Unusually, it was both directed and produced by a trio: Lance Comfort, Mutz Greenbaum and Victor Hanbury. It was shot at Denham Studios with sets designed by the art director William C. Andrews. The film was produced and distributed by the British branch of RKO Pictures.