Unnai Ninaithu

Unnai Ninaithu English Thinking About You is a 2002 Indian Tamil film directed by Vikraman, starring Suriya, Laila and Sneha in the lead roles. The film opened to mixed reviews in May 2002, but went on to perform well at the box office, while also being remade into several other Indian regional languages.

Vikraman had chosen Vijay to play the lead role in the film, and the actor shot for the film for a few days before opting out of the project, owing to creative differences. He was subsequently replaced by Suriya. Vikram also briefly considered casting actor Prashanth, before finalising Suriya.The team predominantly shot the film in Chennai, while songs were shot in Malaysia, Thailand and Sri Lanka. The team travelled to Kandy and the Ramboda Falls to film sequences across Sri Lanka, and it became the first film by director Vikraman to be shot outside India. ........

Source: Wikipedia