Despite following the award-winning original documentary, Taika Waititi's Next Goal Wins actually makes some fairly major changes to the true story of the American Samoa national football team. Waititi himself has admitted that simply retelling the existing documentary wouldn't have been suitably entertaining – "I had to twist the truth… Otherwise, watch the documentary," he told an audience at the Toronto International Film Festival (via History vs Hollywood). However, while some of these tweaks fall under artistic license, the result is that Next Goal Wins doesn't tell the full story.

https://screenrant.com/next-goal-wins-true-story-details-missing/