The Matrix is a famous science fiction action film written and directed by 
The Wachowski Brothers. The film starring Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss, Hugo Weaving, and Joe Pantoliano.

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In the fascinating world featured in the film, there are many unknown creature. Sentinel is one of them. Since people may have little understanding of sentinel, I made this infographic to introduce this creature.