Sagir Mostafa has been involved in film and theater since 1996. He has been a play writer, director, actor, trainer and organizer of film and group theater.

Sagir Mostafa assisted filmmaker Tanvir Mokammel in a number of his internationally known films including  Chitra Ndir Pare (1997), Lal Salu (2002),  Lalon  (2004),  Rabeya  (2007) and Jiban Dhuli (2013). He also assisted another legendary filmmaker of Bangladesh Sheikh Niyamat Ali in Ami Nari (1995) and Fakhrul Arefin’s “Bhuvonmajhi”.

Sagir Mostafa himself  has produced/ directed a number of documentaries, promotional and awareness raising films. He has been making TVC for more than 15 years.