Tamil cinema (also known as the Kollywood, the Tamil film industry, the Cinema of Tamil Nadu or the Chennai film industry) is the film industry based in Chennai, Tamil Nadu, India, dedicated to the production of feature films in the Tamil language. It is based in Chennai's Kodambakkam area, where several South Indian film production companies are headquartered. With reference to this, the industry is also colloquially referred to as Kollywood, a portmanteau of Kodambakkam and Hollywood. Tamil cinema is known for being India's second largest film industry in terms of films produced, revenue and worldwide distribution, with audiences mainly including people from the four southern Indian states of Tamil Nadu, Kerala, Andhra Pradesh, and Karnataka, placing the industry among the largest in the world.

Silent films were produced in Chennai since 1917 and the era of talkies dawned in 1931 with the film Kalidas. By the end of the 1930s, the legislature of the State of Madras passed the Entertainment Tax Act of 1939. Tamil cinema later had a profound effect on other filmmaking industries of India, establishing Chennai as a secondary hub for Telugu cinema, Malayalam cinema, Kannada cinema, and Hindi cinema. In its modern era, Tamil films from Chennai have been distributed to various overseas theatres in Singapore, Sri Lanka, South Africa, Malaysia, Japan, Oceania, the Middle East, Western Europe, and Northern America. The industry also inspired filmmaking in Tamil diaspora populations in other regions, such as in Europe and Canada.

Ajith Kumar (born 1 May 1971) is an Indian film actor who works mainly in Tamil cinema. He began his career as a supporting actor in a Telugu film before gaining critical recognition in the Tamil thriller Aasai (1995). A succession of high-grossing films followed where Ajith was usually depicted as a romantic hero, with Kadhal Kottai (1996), Aval Varuvala (1998), Kadhal Mannan (1998) and Unnai Thedi (1999) being the most notable. He later forayed into method acting, as seen in Vaali (1999), Mugavaree (2000), Kandukondain Kandukondain (2000) and Citizen (2001) before establishing himself as an action hero with popular films including Amarkalam (1999), Dheena (2001), Villain (2002), Attagasam (2004), Varalaru (2006), Kireedam (2007), Billa (2007) and Mankatha (2011).

He has won three Filmfare Best Actor Awards in Tamil, all for films which showcased him in multiple roles. Ajith performs predominantly in leading roles in major studio films, genres ranging from romantic comedies and drama to action thrillers. In addition to his acting, Ajith, in a sabbatical, participated in the 2004 British Formula Three season as a race driver for a minor outfit, and was ranked the third best motor car driver in India at his peak. Ajith remains a popular figure in the media of Tamil Nadu, making headlines for his relationships before his marriage to former actress Shalini, his long-running media-built rivalry with actor Vijay and his controversial statements in a few occasions.