Rakesh Roshan's ‘Koi...Mil Gaya’, released in 2003, is India's first sci-fi film featuring an alien. The sci-fi musical ‘Koi...Mil Gaya' and India's first superhero film franchise, ‘Krrish’, also stands to be the first multi-genre story franchise that carries forward characters and storylines from its preceding parts. The film and its instalments received rave reviews from the audience and critics alike. 

‘Koi...Mil Gaya', starring Hrithik Roshan, Preity Zinta and Rekha, emerged to be one of the most memorable films of the actors. Hrithik Roshan, who played the role of a mentally challenged boy with the mind of a 9-year-old, redefined his acting prowess in the eyes of the audience with his superlative performance as Rohit Mehra.