After studying filmmaking at the Lebanese Academy of Fine Arts (ALBA), Halim Sabbagh directed several shorts: Image10.jpeg (2006), Summer, the eighth chapter of the collective video work Summertime (2007) and Room 207 (2007) as part of the Film Form workshop with Arne Bro. Having worked in the advertising industry, Halim directed the observational documentary TVC, The Joy of Life (2011) premiered at the CPH: DOX Festival and many other TVCs and short documentaries.
Halim worked as an assistant director on feature films such as Mahbas by Sophie Boutros (2015) and Stable Unstable by Mahmoud Hojeij (2013). He is the conceiver and editor of the theatrical trailers of the feature films The Valley by Ghassan Salhab, The Road by Rana Salem, Stable Unstable by Mahmoud Hojeij and Ladder to Damascus by Mohammed Malas. He also edited the feature creative documentary e muet by Corine Shawi.
Halim participated at the fourth Berlinale talent campus as part of the Berlin International Film Festival. He also participated in the MEDITALENTS scriptwriting and development programme for his feature film project The Inheritor that was granted the Francophonie award at the Beirut Cinema Project coproduction forum organized by Fondation Liban Cinema in 2014.