Chirunavvutho (transl. With a Smile) is a 2000 Indian Telugu-language film directed by G. Ram Prasad, with a story written by Trivikram Srinivas. The film stars Venu, debutante Shaheen Khan, Prema, and Prakash Raj. The music for the film was composed by Mani Sharma. Upon release, Chirunavvutho became a commercial success.

The film won three Nandi Awards, including Best Feature Film. It was later remade into Kannada as Premakke Sai (2001) and Tamil as Youth (2002), with Shaheen reprising her role in both remakes. The film was also unofficially remade in Hindi as Muskurake Dekh Zara (2010).

The story revolves around Venu, who is an orphan and a talented chef. His philosophy is to live happily with a positive attitude all the time. His maternal uncle wants to marry him with his daughter Aruna. Aruna runs away from the house during the marriage by discriminating against him as a low life chef, and he cannot be suitable for her.

Venu goes to the city to find a job in restaurants. There, he meets Sandhya. During a New Year's party, her soft drinks glass was adulterated with alcohol and she was about to be raped. Then Venu saves her from the rogues who had tried to rape her. Later, Sandhya becomes close to Venu, and both of them are fond of each other. During her birthday party, she introduces Pratap to Venu and announces that she will soon marry him, and then Venu becomes upset. When asked about his disappointment, Venu proposes to Sandhya, for which she politely declines his proposal. Venu takes the rejection in a positive way, but being straightforward, Venu believes that Sandhya still loves him. Then, he pursues his quest for the love of Sandhya. Meanwhile, Sandhya observes the characters of selfish and self-centered Pratap and optimistic and selfless Venu.

Venu receives a call from a police station where Aruna was saved by the police when she attempted suicide. Then Aruna reveals to Venu that her lover cheated her after elopement, having no hope she was thinking what to do before the tank bund, but the police misunderstood her and arrested her for attempting suicide. Venu makes her confident and returns her to his home and heals her emotional wounds, and then Venu's friends suggest marrying now reformed Aruna, but Venu rejects it by saying that he has sympathy on Aruna not love and that he would take care of her as a good friend. Aruna also supports his decision. Sandhya observes Venu through these circumstances and starts to admire Venu and befriends Aruna.

Later, it is revealed that Pratap is Aruna's lover who cheated her for the sake of Sandhya's property. Then he secretly meets Aruna and supports his decision to cheat her by saying that he would find a better life than her by marrying Sandhya, just like how she had discriminated against her cousin Venu, and he proposes to Aruna to "keep her" out of wedlock. Then furious Aruna slaps Pratap and warns him not to reenter her life. Then Venu, who listened to all of this standing in the back door, appreciates Aruna for her courage and warns Pratap for his misbehaviour. Then opportunistic Pratap makes mends with both that they do not ruin his marriage with Sandhya. Then Venu confidently accepts it and predicts that Sandhya will leave Pratap soon and bang him out from his house.

Meanwhile, Sandhya, caught in confusion between both of them, asks her mother about her definition of love. Her mother advises: "It's better to marry a person who loves you than marrying a person whom you love."

Those words changed the mind and heart of Sandhya, and she decided to accept Venu's proposal. Then Sandhya turns a runaway bride and goes to Venu's house to ask his hand for marriage. But Venu, who has his own attitude and wisdom, makes Sandhya confident and return her to the wedding.