Successful movie director John L. Sullivan, convinced he won't be able to film his ambitious masterpiece until he has suffered, dons a hobo disguise and sets off on a journey, aiming to "know trouble" first-hand. When all he finds is a train ride back to Hollywood and a beautiful blonde companion, he redoubles his efforts, managing to land himself in more trouble than he bargained for when he loses his memory and ends up a prisoner on a chain gang.

Loving but irresponsible dad Daniel Hillard, estranged from his exasperated spouse, is crushed by a court order allowing only weekly visits with his kids. When Daniel learns his ex needs a housekeeper, he gets the job -- disguised as a British nanny. Soon he becomes not only his children's best pal but the kind of parent he should have been from the start.

In Prohibition-era Chicago, musicians Joe and Jerry witness a mob hit, and flee the state in an all-female band disguised as Josephine and Daphne, but further complications set in.

Miss Marple believes she's seen a murder in a passing-by train, yet when the police find no evidence she decides to investigate it on her own.

In this riot of frantic disguises and mistaken identities, Victor Pivert, a blustering, bigoted French factory owner, finds himself taken hostage by Slimane, an Arab rebel leader. The two dress up as rabbis as they try to elude not only assasins from Slimane's country, but also the police, who think Pivert is a murderer. Pivert ends up posing as Rabbi Jacob, a beloved figure who's returned to France for his first visit after 30 years in the United States. Adding to the confusion are Pivert's dentist-wife, who thinks her husband is leaving her for another woman, their daughter, who's about to get married, and a Parisian neighborhood filled with people eager to celebrate the return of Rabbi Jacob.

Charles Duchemin, a well-known gourmet and publisher of a famous restaurant guide, is waging a war against fast food entrepreneur Tri- catel to save the French art of cooking. After having agreed to appear on a talk show to show his skills in naming food and wine by taste, he is confronted with two disasters: his son wants to become a clown rather than a restaurant tester and he, the famous Charles Duchemin, has lost his taste!

Raoul Duke and his attorney Dr. Gonzo drive a red convertible across the Mojave desert to Las Vegas with a suitcase full of drugs to cover a motorcycle race. As their consumption of drugs increases at an alarming rate, the stoned duo trash their hotel room and fear legal repercussions. Duke begins to drive back to L.A., but after an odd run-in with a cop, he returns to Sin City and continues his wild drug binge.

Spiritualist Blanche Tyler and her cab-driving boyfriend encounter a pair of serial kidnappers while trailing a missing heir in California.

Two young gentlemen living in 1890s England use the same pseudonym ('Ernest') on the sly, which is fine until they both fall in love with women using that name, which leads to a comedy of mistaken identities.

A case of mistaken identity forces a Federal agent and a dental supply salesman to team up as they speed through the streets of Detroit to pull off a sting operation and solve the murder of the agent's former partner.

Arriving in an alpine village a crook is mistaken for a recently deceased doctor and decides to impersonate him. Three girls stranded in the same village are sheltered by the "doctor" and naked German hilarity inevitably ensues.

John and his buddy Jeremy are emotional criminals who know how to use a woman's hopes and dreams for their own carnal gain. Their modus operandi: crashing weddings. Normally, they meet guests who want to toast the romantic day with a random hook-up. But when John meets Claire, he discovers what true love – and heartache – feels like.