In 2007 , Mani made '' Guru '' , a biographical film based on the life of Dhirubhai Ambani , a business magnate from India . The film starred Abhishek Bachchan and Aishwarya Rai . The film , set in the early 1950s , became a box office success and received critical acclaim . Guru was screened at the Tous Les Cinemas du Monde ( World Cinema ) section of the 2007 Cannes Film Festival . In 2010 , Mani worked on a bilingual film , titled '' Raavanan '' in Tamil where in the film look was unveiled at 2010 Cannes Film Festival , as part of its marketing campaign . and '' Raavan '' in Hindi . The Tamil version was dubbed into Telugu and titled '' Villain '' . The film was released worldwide on 18 June 2010
2010 Cannes Film Festival
2010 Cannes Film Festival
Mani Ratnam