"The little boy and girl are professional actors from Malta. The voices in the background are Syrian refugees living in Malta."
The film appears to show the boy being shot before getting back to his feet to complete the rescue - a detail that led some viewers to question its authenticity while more credulous types concluded he had faked his own death to avoid the sniper.
It received funding from the Norwegian Film Institute and the Arts Council Norway, and the makers have denied it was a cynical attempt to get headlines. They said they were always clear about their intentions.
"The children surviving gunshots was supposed to send small clues that it was not real," John Einar Hagen, the producer, told the BBC. "We had long discussions with the film's financiers about the ethics around making a film like this."