The film is a slog. It is the kind of movie that thinks "serious" means "everyone is wet and crying." While the book was a page-turner, the movie feels more like a slow leak in a basement. It is damp, gray, and relentlessly miserable. Critics and audiences both hovered around the 40 to 50 percent mark on Rotten Tomatoes because the film struggles to translate the internal monologue of an unreliable narrator into a visual story without it feeling repetitive.
The Emily Blunt carry
Emily Blunt is doing all the heavy lifting here. She is a phenomenal actress, and she plays "uncomfortably messy" with total commitment. If your only context for her is a singing nanny or a Disney adventurer, this will be a massive shock to the system. She makes the character’s desperation feel real, which is actually why the movie is so hard to watch. You can see how this role fits into her wider career in our Emily Blunt Movie Guide for Parents. In this story, she isn't a hero; she is a person drowning in a bottle, and the performance is almost too effective for the movie's own good.
A study in suburban misery
This isn't a "fun" mystery where you find clues and solve a puzzle. It is a story about gaslighting. The movie spends a lot of time making you feel as confused and devalued as the lead character. For an adult audience, that can be a powerful experience, even if it is depressing. For a teenager, it is usually just confusing or boring. The IMDB and Rotten Tomatoes scores reflect this. It is a mid-tier thriller that lacks the style or the sharp social commentary of the movies it tries to imitate. It relies on shock value rather than a clever script to keep you engaged.
Better ways to scratch the mystery itch
If a younger viewer is asking for this because they saw a clip or heard it is a "thriller," they are likely looking for the tension, not the graphic domestic trauma. You are better off steering them toward atmospheric, female-led stories that provide that "spooky vibe" without the R-rated baggage. The Girl on the Train is essentially a soap opera with a high budget and a lot of blood. If you decide to watch it, do it for the acting. Do not watch it because you want to feel good when the credits roll.