Diana Penty has been signed up alongside John Abraham for a film on nuclear bomb test conducted by India. The film is tentatively titled ‘Shantivaan’ and is a thriller which is based on real life events of 1998, when the Indian Army did nuclear tests in Pokhran, Rajasthan. After lighthearted films like ‘Cocktail’ and ‘Happy Bhag Jayegi’, Diana is set to surprise the audience with this intense action drama. The actress reportedly has also been cast in Anand L Rai’s sequel to ‘Happy Bhag Jayegi’. But for now, she is set to begin shooting with John for ‘Shantivaan’.