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.

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.

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.

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

40-year-old Elling, sensitive, would-be poet, is sent to live in a state institution when his mother, who has sheltered him his entire life, dies. There he meets Kjell Bjarne, a gentle giant and female-obsessed virgin, also in his 40s.

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!

Con artist Gwen moves into Newton's empty home without his knowledge and begins setting up house, posing as his new wife.

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.

Disguised as her daughter, Anna's mother slips into French lessons to supplement little daughter's notes. She strikes her best in class, but she also shows what she is capable of in the group in the afternoon. As the headmaster uncovers the mother-daughter delusion, it becomes all the more praiseworthy.