He had a multi-disciplinary education in arts, journalism, and photography. In 1998, he met his fellow director/producer Daniel Cross and co-founded with him EyeSteelFilm specilaizing in making documentaries. He is the vice-president of the company.
Aung-Thwin, an award-winning director made the films Chairman George on the stations CTV, BBC's Storyville and TV 2 (Denmark). as a co-director to Daniel Cross. Another co-direction with Cross was Too Colourful for the League, Gemini-nominated TV documentary examining the struggle of blacks in ice hockey from the 1930s to the present day telling the story of black players' courage and determination to play in a white-dominated sport.
To his credit as sole director are the documentary Bone that follows Montreal's Snell Thouin Project with the extraordinary talents of Willy Tsao's Beijing Modern Dance Company, Music for a Blue Train, a documentary about the beauty and hardship of playing music for commuter traffic focussing on Montreal's subway system, The Métro, that has 59 designated spots for musicians to perform for the public and finally Inuuvunga: I Am Inuk, I Am Alive co-directed with fellow EyeSteelFilm directors Daniel Cross, Brett Gaylor and the students of Inukjuak - Innalik School.