La fórmula del Dr. Funes

Through his telescope, eleven year old Martin Poyo watches the old Doctor Funes, as he discovers the formula for eternal youth. The old man wishes to be young again to play soccer and be a ladies man. But the formula fails and turns him instead into an 11 year old orphan. Funes befriends Martín and invades his family home. As mischief they use formula to turn adults back into children, but they also use it to get rid of the evil Dr Moebius, who is determined to get the formula and become young himself. (In Films We Trust)