Thirisoolam (English: Trident) is a 1979 Tamil film directed by K. Vijayan. It has Sivaji Ganesan playing three different roles. The film was Sivaji's last all-time blockbuster and completed a 200-days run at the box office. About 30 million tickets were sold worldwide. This was significant as Tamil Nadu population was 47 million then. This movie was the last one for all time record at the box office and it was the first movie in south india which crossed five crores.