The Trail of Tears. The Indian-removal process continued. In 1836, the federal government drove the Creeks from their land for the last time: 3,500 of the 15,000 Creeks who set out for Oklahoma did not survive the trip.
The Reef had its world premiere as a market screening at the Cannes Film Festival in May 2010. It was later shown at South Korea's Pusan Film Festival on 10 October 2010 and Spain's Sitges Film Festival. The film's Australian premiere was in late 2010 at both the Brisbane and Canberra film festivals.
Filming began on August 4, 2010, in Montreal, Quebec, Canada. After a month of filming in Montreal, the production shot footage in Gatineau, Quebec, on August 17, which stands in for Denver, Colorado, in 1947. The film shot for five days in the middle of October 2010 in and around Calgary, Alberta.