Born in 1979 and raised in Beirut, Kaabour graduated from the Mel Oppenheim School of Cinema and worked at the National Film Board of Canada and the CBC newsroom. His short film "Being Osama" received four international awards and made him the youngest commissioned filmmaker in Canadian television.
His highly esteemed documentary Teta, Alf Marra (Grandma, a Thousand Times)((2010) has received glowing recognition from the international film festival circuit, including a triumphant world premiere at the Doha Tribeca Film Festival in October 2010, where it won the Audience Award for Best Documentary and a Jury Special Mention for its filmmaker, Mahmoud Kaabour.