Rwandan genocide film Shooting Dogs had its world premiere at a football stadium in the capital Kigali on Monday in front of 1,500 guests.
Hundreds of Rwandans appear in the film as extras
Culture Minister Habineza Joseph joined survivors of the 1994 massacres and their families at the screening.
The film features hundreds of Rwandans, including some genocide survivors.
It was screened at the Amnesty Film Festival in The Netherlands earlier this month but the Rwandan screening is being billed as the world premiere.
It centres on events at a school complex in Kigali in 1994 when the militia attacked people hiding inside after the UN pulled out of the site.
Directed by Michael Caton-Jones, it stars John Hurt as a priest and Hugh Dancy as a teacher who have to decide whether to leave the Rwandans to their fate and save themselves or stand with them and face the consequences.
Process of reconciliation
"The film-making was a most rewarding experience for the thousands of Rwandans who participated," said Mr Habineza.
"The story that is told in the film is an important contribution to this country's recent history and I believe can help in the process of reconciliation that we have been building in Rwanda for more than a decade," he added.
The UK premiere will take place on Thursday in London, ahead of its nationwide release on Friday.