Dhavani Kanavugal (transl. Sweet Dreams) is a 1984 Indian Tamil language film written, directed and produced by K. Bhagyaraj, starring Sivaji Ganesan and K. Bhagyaraj. Bhagyaraj makes a pseudo reference in this film to Bharathiraja's Puthiya Vaarpugal film in which Bhagyaraj was the dialogue writer and cast as hero of the movie. Bhagyaraj used this fact in this movie where he cast his mentor Bharathiraja in a guest role (movie director) as himself who decides to cast an extra(Bhagyaraj) as hero and dialogue writer of his on-screen movie after accidentally discovering his skills. The movie did extremely well at box office.