Guddi (1971)
Guddi is a 1971 Hindi comedy-drama film directed by Hrishikesh Mukherjee and written by Gulzar. It starred Dharmendra, Jaya Bachchan and Utpal Dutt. It is Jaya Bachchan (née Bhaduri)'s career-making film in which she plays a schoolgirl obsessed with the actor Dharmendra, who plays himself. She earned a Filmfare nomination as Best Actress, the only nomination for the film. Utpal Dutt also has a starring role. Many popular Bollywood actors like Amitabh Bachchan, Om Prakash and Pran gave guest appearances as themselves. The film became a "big city hit" and did "above average" business everywhere else. It was later remade in Tamil as Cinema Paithiyam (1975) starring Jayachitra and Kamal Haasan.
More at Wikipedia.