Bunty (Aditya Roy Kapur) loves his girlfriend Tanya, but runs a mile away whenever she mentions marriage. His phobia with matrimony stems from his parents Kishen (Akshay Kumar) and Mala's (Aishwarya Rai Bachchan) acrimonious marriage. But now Bunty is in a fix. Tanya's grandfather, Professor Anthony Gonsalves (Randhir Kapoor), has given him an ultimatum -- get married to Tanya or stop seeing her. Bunty knows that unless he does something fast, his dreams of living happily ever after with Tanya will bite the dust. As Bunty's surprise party for his parent's 35th wedding anniversary deteriorates into yet another explosive fight between Kishen and Mala, he decides to turn back the clock and rewrite Kishen and Mala's destiny and alter their disastrous marriage into a romantic affair of the hearts. And how does he do that?
By using the professor's time machine to travel back in time to a time when Kishen and Mala were not married. To a time when Kishen's father Rai Bahadur (Om Puri) and Mala's mother Bholi Devi (Kirron Kher) were sworn enemies. To a time when Kishen was a certified nerd, bullied merciless by Kundan (Rannvijay Singh) and to a time when Mala couldn't stand the sight of Kishen and took great pleasure in ragging him silly. Bunty has to transform his father from a wimp into an eligible bachelor and his mother from a tomboy into the epitome of feminine grace. Then he has to attempt an impossible task and that is to make them fall in love with each other. And finally he has to make his grandparents agree to their love marriage.
Both Akshay and Aishwarya remain true to their characters and give applauding performances. It requires a lot of courage for a good looking action hero like Akshay to look the exact opposite of what he is, with buck teeth and neck-length hair, yet he carries it off convincingly. He's wonderful in both his young and old characters. The same goes for Aishwarya, who enacts the over the top Mala with a complete understanding of her character. Even the elderly Mala has been effectively portrayed by her. The real surprise is Aditya Roy Kapur, who looks extremely persuasive as the demoralized and dispirited son of Akshay & Aishwarya. He's fantastic. This role will definitely get him noticed amonst the film fraternity and get him some good roles in the coming future. Other Senior actors like Om Puri & Kirron Kher have limited roles, yet they give convincingly superb performances and Rajpal Yadav lends his own brand of humor to the film. Rannvijay Singh isn't very convincing, while Randhir Kapoor and Neha Dhupia are totally wasted. On the whole, ACTION REPLAYY is a light-hearted Romantic Comedy.
A slightly slow & dreary First half, but the pace picks up during the Second half and with good performances by most of the cast, makes it a fairly decent watch.