Megastar Rajinikanth, who is making his big screen comeback with 'Kochadaiyaan', will unveil the trailer of the period film at the prestigious Festival de Cannes, which will be held in May this year. br The film is directed by Rajini's daughter Soundarya Ashwin and stars Deepika Padukone opposite the 62-year-old actor. 'Kochadaiyaan' is the first Indian movie to be filmed in motion-capture technology, along the lines of Hollywood blockbusters 'Avatar' and 'Tintin. br Amitabh Bachchan will also walk the red carpet at the Cannes Film Festival, to promote his Hollywood debut 'The Great Gatsby'.