Several films from this decade are considered "benchmark" movies that set new standards for narrative and technical brilliance.

Music, Song Culture, and Soundtracks Film music remained central to Tamil cinema’s appeal, serving both narrative and commercial functions. The 2000s featured prolific composers—A. R. Rahman continued to innovate with global fusion sounds; Ilaiyaraaja’s influence persisted; newcomers like Harris Jayaraj, Yuvan Shankar Raja, and Vijay Antony brought fresh styles. Songs ranged from melodic ballads to techno-infused tracks, often driving album sales and film marketing.

This period also solidified the "Big Two" rivalry. Vijay and Ajith Kumar transitioned from romantic heroes to massive action icons. Movies like Thirumalai and Dheena established their "mass" image, creating a fan culture that remains unparalleled today. The Rise of the Director-Auteur (2004-2007)

The decade 2000–2010 was a period of significant churn for Tamil films. It began with the lingering shadow of the 90s superstars (Rajinikanth, Kamal Haasan) and witnessed the rise of a "new wave" of directors (Shankar, Selvaraghavan, Bala, Vetrimaaran) who redefined genre filmmaking. The industry successfully transitioned from film-reel to digital intermediate (DI) processes, saw the maturation of actor Vijay and Ajith Kumar into tier-1 stars, and experienced the tragic loss of key figures (K. Balachander, Jeeva). By 2010, Kollywood had laid the technical and narrative groundwork for its global expansion.

You cannot write about why Tamil movies from 2000 to 2010 worked without discussing the . In this decade, the soundtrack became the marketing campaign.