New Delhi, March 5 -- Filmmaker Tigmanshu Dhulias latest film 'Paan Singh Tomar', a biopic on former national steeplechase champion who turned into a dreaded bandit, has impressed many, including veteran actor Amitabh Bachchan and director Anurag Kashyap.The megastar has applauded the film, released this Friday, on his blog, saying it is an inspiring and a fitting tribute to unsung sports heroes.He wrote, "Saw an inspiring film, 'Paan Singh Tomar' directed by Tigmanshu Dhulia and enacted by a whole cast of fresh and very talented players, led by that incredible performer Irrfan."Such restraint in direction and performance, but such an impression on the nature of the subject. A biopic true to life and detail. A wonderful tribute to the many unsung sports heroes of the nation, who contribute so much for the Motherland both within and on international platforms, yet are left in penury to pass away, unnoticed, uncared for," he added. While Critically-acclaimed filmmaker Anurag has urged the movie buffs to go and watch the film on micro-blogging site Twitter. "'Paan Singh Tomar' is like 29th Feb of Bollywood. comes only once in a few years. What a powerful film, powerful character, go watch the film, turn it into what no-one believed it could be," said Kashyap.