CHENNAI: Malayalam superstar Mohanlal is reportedly going to do a joint venture with Tamil superstar Kamal Haasan. The project will be directed by Kamal Haasan himself.Apart from these two veteran stars, the film will also have Ravi Teja and Suriya. The excitement does not end here because the film also has some of the most popular heroines like Deepika Padukone, Genelia D'Souza and Trisha.The Rs 150 crore-film is one of the most expensive projects of 2011. Kamal Haasan will also write the script and star in a vital role in the yet-to-be-named flick.