That said...
Rekha plays a granny who nourishes kid Krishna by feeding him BOURNVITA every day. She dutifuly cleans his clothes with TIDE, thus making sure he can wear dresses from SIYARAM. She is flabbergasted to know the boy is a genius. She learns this by eavesdropping on an IQ test conducted by five learned people at Krishna's school.
Learned Person: "What is Amount?"
Krishna, the boy genius: "Principal plus Interest is Amount"
Devastated by this astonishing display of brilliance, one strand of hair on Rekha's head turns gray.
Cut to scene of a horse called Toofan, running like the wind. Cut to the shoes on Krishna's feet. Cut to rippling muscles, to long wavy hair, to Hrithik horsing around. Ta-da! The boy genius has turned into a combination of Johnny Weismuller and Chow Yun Fat.
A Tarzan-meets-Jane interlude later, our hero rushes off to Singapore to sing a few songs and model for the Singapore Tourism industry and STAR TV. A few kids are caught in a circus fire, our intrepid hero rushes to the rescue wearing a cast-off trenchcoat from Neo and a half bitten mask from Catwoman. Ta-da! He is now Krrish, the darrling of the masses.
Unbeknownst to Krrish, enter a scheming villain called Dr Arya (Naseeruddin Shah), who is out to create a super-computer that combines the powers of astronomy, astrology and Google Earth to predict the future. You predict the future by placing your hand on a glass table and moving a few fancy graphical images around. You know it's your future because you can see yourself in a big screen in front of you. You can also see your wife, your mother, your newly born son and if needed, you can see your killer as well. Naseer fails to realize that the future is irreversible and tries to kill Krrish, thus indicating that despite being a super genius, he's never watched a single Hindi movie in his life.
Grranny meets her son, her son meets his son, his son marries the love of his life and Preity Zinta has the last laugh.
Highly rrecommended, especially if you wanted to catch the Arrgentina - Mexico match and was wondering how to stay up late.