Michael Lanyard is suspected of stealing two fabulous diamonds from a vault in Scotland Yard, where they were being held for safekeeping, but the Yard can't prove he did it. Later, Lanyard is summoned by a member of the nobility to help the latter raise money to pay a blackmailer. Lanyard later finds evidence to reveal the diamonds as having been stolen by a famous stage star.

To combat the problem of drug-dealing juvenile delinquents operating in racial gangs, two recent police academy graduates are sent to a local high school, posing as students. [Initially released in theaters in 1960 as "This Rebel Breed", it was re-released as "The Black Rebels" five years later, re-edited with the addition of a handful of dialogue-free scenes of youths making out in a bedroom, with partial female nudity.]

In this entry in the enduring series, the suave jewel thief finds himself helping the police break up a ring of diamond smugglers. Along the way, he winds up accused of both robbery and murder.

A waitress falls for a foreign businessman (Mohr), while receiving attention from a pair of motorcycle cops, Curtis and Defore. She soon realizes that Mohr is actually a crook and goes back to flirting with her fast cop friends.

A young attorney (Bonita Granville) is convinced a murder suspect is innocent in the killing of his wife.

Dr. John Meredith has been driven from civilization by the criminal activities of his twin brother Bradley Meredith. With his infant daughter, he settles in the African jungle, where his ability to cure the native ills has resulted in his virtual control of the Masamba tribes, who possess vast diamond mines coveted by a gang of crooks.

Also released as Montana Mike, Heaven Only Knows is an offbeat western with fantasy overtones. Hard-bitten gambling boss Brian Donlevy rules his frontier community with brawn and bullets. To his dismay, Donlevy discovers that he has a guardian angel (Robert Cummings), who shows up in the guise of an Eastern tenderfoot. The angel has been sent from Above to save Donlevy's soul, and to that end encourages the one-time villain to squire a minister's daughter (Jorja Curtwright) rather than his usual dance-hall girls. Donlevy is also given tips on winning against his enemies without resorting to gunplay. The gambler finally redeems himself with Heaven by rescuing the angel from a lynch mob (how can you lynch an angel?) Heaven Only Knows deserves an "E" for Effort for bringing a fresh twist to the venerable western genre.

Roy Rogers, Smiley Burnette and the Sons of the Pioneers go undercover to help Texas Governor Russell Hicks stop World War II Axis sympathizers from blowing up U.S. warehouses.

Chuck Wheeler gets out of the Pen and sets up an elaborate heist of Vegas casino money travelling by armored truck. He enlists the help of shady club owner Joe Darren and his ex-cellmate's wife, Vi. Vi's husband Mike is a trigger happy and jealous hothead and will not grant her a divorce. Mike escapes from prison right before the armored truck job goes into motion and promises trouble as he tries to locate his associates and his wandering wife.

When author Charles Regnier returns to Paris with a best-selling book that criticizes the government, he's tormented by frequent blackouts. After a mysterious cat-like creature slaughters people close to him, Charles is suspected of murder. Charles fears that he is the beast, but his paramour Marie and best friend Henry, believe he's innocent... until the creature begins to stalk Marie.

A group of American witness the deadly invasion of the United States by the Soviet Union.

Charlie Chan's investigation of a blackmail-induced suicide as a case of murder leads him into a world of magick and mysticism peopled with a stage magician, a phoney spiritualist, and a for-real mind reader.

The first manned flight to Mars returns after having been out of communications since it had arrived on Mars. What would it reveal?

A mobster's moll leads a newsman, cub reporter and photographer to a scoop.