It's alright, the kind that roughly knows where the plot is going, but I still really want to watch it. In fact, the direction of the plot and the finale have hints in many places [the following contains spoilers]------ For example, on Mia's way to find his father, the camera cuts to a man at work, playing a song There is a lyric, roughly [discussing about the world of two people] (can't remember, it was just two people mentioned anyway), which implies that it was two people who escaped from the last "shark" mouth. And at the beginning, at the family dinner table, the father talked about increasing the relationship between the two sisters, that is to say, it was the two sisters who escaped.
---------- Some people say that the roles are indistinguishable, and it is only at the end that they know which two escaped. I think this point is handled well, after all, I can recognize it. In scenes shot with props, it is indeed difficult to identify who and who. In the movies I've seen, such as firefighting movies, the firefighting heroes are as illegible as they wear oxygen masks, and the Air Force movies, the protective gear required for flight is as difficult to identify as they wear them.
Overall it's okay, but as a 2020 movie, the details and special effects are not very good, give four stars
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