Harper (1966)

A private detective takes on a case that involves him with three eccentric criminals, a beautiful liar, and their quest for a priceless statuette.

Harper is brought to Louisiana to investigate an attempted blackmail scheme. He soon finds out that it involves an old flame of his and her daughter. He eventually finds himself caught in a power struggle between the matriarch of the family and a greedy oil baron, who wants their property. Poor Harper! Things are not as straight-forward as they initially appeared.

A would be private eye gets mixed up in a smuggling case.

Set in Kansas City in 1933, Eastwood plays a police lieutenant known simply by his last name, Speer. Reynolds plays a former cop turned private eye named Mike Murphy. Both Speer and Murphy served on the force together and were once good friends, but are now bitter enemies. When Murphy's partner is slain they team up again to fight the mob.

The story takes place in occupied Korea at the start of the 20th century, where a young student in medicine discovers the murdered body of the son of a government official. Being scared of being accused, he decides to hire Hong Jin-ho (a detective) to help him find the murderer before the police accuse him of the murder.

An American salvage diver plunges into dangerous intrigue around a sunken treasure in the Philippines.

A private eye is hired by a mayoral candidate to prevent any sort of adverse publicity. It seems that, somewhere in town, there's a talking blackbird who insists upon saying that the candidate will commit a murder. When the killing occurs, the candidate is implicated, and the detective is off on a hectic pursuit of the incriminating crow and the actual murderer.

An alien sent to Earth to retrieve a drug that was sent here on a black disc has to fight her race's enemies, who are also on Earth to search for the drug.

When a private eye, a jilted bride and a mysterious stranger join forces to track down an elusive mobster, there's more than trouble in the air.

A private eye gets in trouble when he tries to help a woman in distress.

A Hollywood private eye (Efrem Zimbalist Jr.) seeks a singer being stalked by a hired killer.

A private eye who's over his head in debt takes on a job snapping photos of his client's rich husband in bed with another woman. But when the husband winds up with three bullet holes that seem to have come from the private eye's own gun, he's got to prove he's not the murderer meanwhile getting tangled deeper in a web of deceit, lies, and steamy night club dancers!

Private Eye Popeye gets a call from Olive Oyl to guard a precious gem. But no sooner does he get the gem than the butler takes it.

A private eye is hired to protect a young woman who has a black book on a crime syndicate.

A private investigator is hired to track down a missing girl on the run from a mysterious Silicon Valley corporation.

In 1940s Los Angeles, private investigator Nick Popodopolis, is hired by actress Dixie Ray, to find her blackmailer.

After being consulted by a friend concerning a murder case, a private eye learns the friend has become the next victim. Passport to Treason was put together by Robert S. Baker and Monty Berman, the same team who’d later collaborate on the UK TV series The Saint. Rod Cameron stars as an American private eye, stationed in London. For the sake of a murdered friend, the detective takes over the dead man’s case, which turns out to have international ramifications. The villains are members of a phony pacifistic society, all of whom harbor plans for taking over the world.

August T. Harrison, private eye, comes out of retirement to solve a bizarre missing persons case, but finds himself caught in the middle of a dark conspiracy involving the writings of H.P. Lovecraft.

A young man has to take over the ruined detective agency of his father and his uncle. There are two major difficulties to manage: His uncle and his new job.

Tongue-in-cheek account of a private eye hired to find a young porn actress.

An alcoholic ex-football player drinks his days away, having failed to come to terms with his sexuality and his real feelings for his football buddy who died after an ambiguous accident. His wife is crucified by her desperation to make him desire her: but he resists the affections of his wife. His reunion with his father—who is dying of cancer—jogs a host of memories and revelations for both father and son.

In late 1890s Wyoming, Butch Cassidy is the affable, clever and talkative leader of the outlaw Hole in the Wall Gang. His closest companion is the laconic dead-shot Sundance Kid. As the west rapidly becomes civilized, the law finally catches up to Butch, Sundance and their gang. Chased doggedly by a special posse, the two decide to make their way to South America in hopes of evading their pursuers once and for all.

When petty criminal Luke Jackson is sentenced to two years in a Florida prison farm, he doesn't play by the rules of either the sadistic warden or the yard's resident heavy, Dragline, who ends up admiring the new guy's unbreakable will. Luke's bravado, even in the face of repeated stints in the prison's dreaded solitary confinement cell, "the box," make him a rebel hero to his fellow convicts and a thorn in the side of the prison officers.