Passengers recounted scenes of terror and said many had feared for their lives.
Emporium Productions is behind the doc and Silverlining Rights is distributing.
Sox documentaries are also receiving backing.
Passengers of Singapore Airlines flight SQ321 from London to Singapore, which made an emergency landing in Bangkok, greet family members upon arrival at Changi AirportROSLAN RAHMAN/AFP via Getty Images
The 29th BIFF will be held from October 2-10 around the Busan Cinema Center in Korea.
RTL in the Netherland has just greenlit a local version of the show.
The show was created and produced by Bargoens, which is led by well-known creative Eric Goens.
Be-Entertainment shops the format and did the RTL deal.
