Boy and girl fall in love but might be brother and sister

After the death of her husband, a mother takes her kids off to live with their grandparents in a huge, decrepit old mansion. However, the kids are kept hidden in a room just below the attic, visited only by their mother who becomes less and less concerned about them and their failing health, and more concerned about herself and the inheritence she plans to win back from her dying father.

After the sudden death of their father, four children face cruel treatment from their ruthless grandmother.

A young boy stays with his aunt and uncle, and befriends his cousin who's the same age. But his cousin begins showing increasing signs of psychotic behavior.

The unbelievable story of 22 year old Or, who secretly finances his sex change operation in Thailand by lying to his conservative parents and then returns home as a woman to face her new life, her family and the cost of living her dream

Cowabunga! The surfing '60s ride into the new wave as Frankie and Annette star in this hip update of their old-time, good-time beach movies. With special appearances by Bob Denver, Tony Dow, Pee-Wee Herman, Jerry Mathers and other familiar faces. Frankie and Annette grow up and have kids in the midwest. They return to LA to visit their daughter who is shacked up with her boyfriend and tries to hide the fact. They begin to have marriage problems when Frankie runs into Connie, who has erected a shrine to him in her night club. Their punk son has joined up with the local surf toughs, and things all come to a head when the toughs challenge the good guys to a surfing duel

Boy meets girl; boy falls in love (and had wild, non-stop sex) with girl; boy loses girl... when they discover they are brother and sister! But when he learns that he's the victim of the ultimate case of mistaken identity, the lovesick young man -- whom everyone still thinks is after some taboo thrills -- must race across the country to stop her from marrying another man.

A young man and his pretty step-sister find that they are very much in love with each other when they are reunited after spending years apart. Naturally this leads to both expected and unexpected problems.

A boy falls for his older brother's girlfriend.

When two brothers fall for two sisters, they quickly realize the age differences between them are too big to ignore.

Two brothers fall in love with the same girl, but the girl loves younger brother creating an intriguing love triangle.