The real people behind these stories were involved in the making of each movie and are interviewed in the Special Features. I recommend both the movies and the specials.
These are faith-based movies that made every effort to depict trauma and violence in ways that were not exploitative. But the situations were horrifying, so use caution before allowing your youngsters to view either.
I have read 90 Minutes in Heaven and can recommend it; I have not read Unlikely Angel, so can’t say one way or the other.