Amitabh Bachchan has praised his daughter-in-law and actress Aishwarya Rai Bachchan's forthcoming film 'Sarbjit'.

Directed by Omung Kumar, 'Sarbjit' is based on the real-life story of Sarabjit Singh, who was convicted for spying and terrorism and languished in a Pakistani jail for 23 years, while his sister Dalbir Kaur, tried vigorously to release him.