National award winning filmmaker Rajkumar Hirani's blockbuster 'PK' (2014) -- one of the last few films to be shot on celluloid in Indian cinema -- has entered the National Film Archives of India (NFAI) collection, top officials said here on Tuesday.

Hirani called on NFAI Director Prakash Magdum and handed over the original camera negative of 'PK', a socio-political satire centred around an alien who's stranded on Earth played by Aamir Khan.