Actor Dhanush celebrated his 40th birthday on July 28 with the release of a ‘Kubera’ poster directed by Sekhar Kammula. The film featuring Rashmika Mandanna, Nagarjuna, and others, is due in December. Dhanush’s recent film ‘Raayan’ has grossed Rs 25 crore at the box office in just two days. ‘Kubera’ marks his 51st film.