If you've never heard of the 2018 Tham Luang cave rescue, don't look it up before watching this. I had heard of the incident, but I was ignorant of the details. A knowledge of what happened, going into this film, will ruin the edge-of-your-seat factor. 2 feature films, a 6-part Netflix series, and a handful of documentaries have been made about it, and it was major international news at the time, so those few not in the know will enjoy it more, I think.