Martin, a child of the 21st century, through his telescope discovers Doctor Funes, the inventor of a formula to become young again and the envy of Doctor Moebius, who also wants to regain his youth. Martin goes to visit old Funes, but instead finds twelve year old Pablo, whom he shelters in his house without telling his parents what is going on. Pablo turns the biology teacher into a baby girl with a pacifier, and a group of the elderly into children. Martin dreams of a world of only children, but Doctor Moebius steals the formula, not knowing that its effects are unpredictable.

1988 film

1981 film

Year 1942 in Mexico City, Goyo Cárdenas studies biology and has a beautiful girlfriend, but Goyo also has some contained violence about to explode on the brink of World War II.

Un viernes en la ciudad de México, el periodista Rodrigo Díaz es chantajeado por un par de yuppies delincuentes, que le anuncian el secuestro de su hija Betty. Le exigen una cantidad imposible de reunir y lo empujan a una desesperada decisión.

2001 film directed by Marisa Sistach

Summer vacation, friends Toto and Quique have fun, driving a bike in the neighborhood, and spying for the pretty maid Chabelita. But at one moment in the house appears Toto's cousin, which is destined to turn upside down the usual life of a boy ...