Boston Blackie Goes Hollywood

Fu Manchu's 168th birthday celebration is dampened when a hapless flunky spills Fu's age-regressing elixir vitae. Fu sends his lackeys to round up ingredients for a new batch of elixir, starting with the Star of Leningrad diamond, nabbed from a Soviet exhibition in Washington. The FBI sends agents Capone and Williams to England to confer with Nayland Smith, an expert on Fu.

A disparate group of people meet as passengers on a superspeed train crossing the U.S. Aboard are a seductive blackmailer and the stage director he intends to frame, a woman chasing her husband who is running away with the blackmail victim, and the stage director's feisty leading lady.

Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it.

A graduate student and obsessive runner in New York is drawn into a mysterious plot involving his brother, a member of the secretive Division.

Ambrose C. Park, left on a park bench as an infant with an impulsive need to find his parents, is an assistant to a diamond cutter. Shyster lawyer Remlick, in a strategy to get a fabulous uncut diamond through Ambrose, arranges for Emily Drummon, Duke Fargoh and Maggie Drummon to pose as Ambrose's long-lost parents and sister. The diamond, through many comic situations, is acquired and the gang is going to have Ambrose cut the diamond, and relieve him of the two stones and his parental illusions at the same time. But Maggie, who has no taste for the deception, tips Ambrose off and a wild chase ensues. At the end, Ambrose is very happy as he can now marry his "sister."

A suspected diamond smuggler returns to Istanbul and finds the lady love he thought was dead...or does he?

Nelson puts his criminal ways behind him, having spent years as a first-rate safecracker. This resolution lasts until his brother finds himself owing money to organised crime and Nelson needs to do one last big job, with a few other professionals.

When the coach of the France soccer team is killed by a poisoned dart in the stadium in the end of a game, and his expensive and huge ring with the diamond Pink Panther disappears, the ambitious Chief Inspector Dreyfus assigns the worst police inspector Jacques Clouseau to the case.

An FBI agent is suspicious of two master thieves, quietly enjoying their retirement near what may - or may not - be the biggest score of their careers.

Gang leader Tony pulls off a major diamond heist with his crew, but cop-turned-criminal Ling knows who has the loot and responds by kidnapping Tony's daughter and holding her for ransom. Unfortunately, Tony's lost the diamonds as well. As he frantically searches for his daughter and the jewels, Tony pairs with a high-kicking government agent who once worked with Ling and seeks revenge on him.

In this Franco-Italian gangster parody, a shopkeeper on his way to an Italian holiday suffers a crash that totals his car. The culprit can only compensate his ruined trip by driving an American friend's car from Naples to Bordeaux, but as it happens to be filled with such contraband as stolen money, jewelry and drugs, the involuntary and unwitting companions in crime soon attract all but recreational attention from the "milieu".