Saif Ali Khan was employed in a drama with many characters.
Cocktail (2012 film) . The film stars Saif Ali Khan , Deepika Padukone and newcomer Diana Penty in lead roles , with Dimple Kapadia and Boman Irani appearing in supporting roles . Parineeta (2005 film) . The film featured Vidya Balan ( In her Bollywood Debut ) , Saif Ali Khan and Sanjay Dutt in the lead roles . Saif Ali Khan . The 2004 romantic comedy Hum Tum proved to be Khan 's first success in which he played the sole male lead , earning him the National Film Award for Best Actor , and starring roles in the drama Parineeta and the romantic comedy Salaam Namaste ( both 2005 ) established him as a leading actor in Bollywood .