Wikipedia
Suyamvaram
Suyamvaram is a 1999 Tamil comedy-drama film starring an ensemble cast from actors in the Tamil film industry and shot by a large technical team from the industry. The film was planned by Giridharilal Nagpal and brought together 14 major directors, 19 cinematographers and over thirty leading actors in the Tamil film industry.
The film also holds the Guinness World Record for casting the most stars in a film and also for being the quickest ever feature-length film made, with filming being completed in 23 hours and 58 minutes. The film released on 16 July 1999, to positive reviews from critics, praising the intentions of the makers.