Chibok girls based movie wins big at venice

I think there may be some confusion here.

To the best of my knowledge, there is no movie based on the Chibok girls that has won big at the Venice Film Festival. The Chibok girls are a group of Nigerian schoolgirls who were kidnapped by Boko Haram in 2014 and held captive for several years. While there have been several documentaries and films made about their story, I'm not aware of any feature film that has won major awards at the Venice Film Festival.

If you could provide more information or clarify which movie you're referring to, I'd be happy to try and help you further!