12B is a 2001 Indian Tamil-language romance film directed and written by cinematographer Jeeva; it is his directorial debut. The film stars Shaam in his debut with Simran and Jyothika in lead roles. Hindi actors Suniel Shetty and Moon Moon Sen play supporting roles, and the music was composed by Harris Jayaraj. The film was released on 28 September 2001 to above-average reviews. Critics praised the new concept but criticised the narrative, which they found confusing.

Simran Bagga is an Indian actress, film producer, dancer and singer who works predominantly in Tamil films. She has also appeared in Telugu, Hindi, Malayalam and Kannada films. She is one of the most prolific actresses of Tamil cinema. She is the recipient of numerous accolades including three Filmfare Awards South and one Tamil Nadu State Film Award.