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An Invisible Sign (2011)
Mona Gray is a 20-year-old loner who turned to math for salvation as a child after her father became ill. As an adult she now teaches the subject and helps her students through their own crises.
Genres: Comedy， Drama， Family
Actors: Jessica Alba，Chris Messina，Sonia Braga，John Shea，J.K. Simmons，Sophie Nyweide，Bailee Madison，Marylouise Burke，Ashlie Atkinson，Crystal Bock，Mackenzie Milone，Ian Colletti，Jake Siciliano，Stephanie DeBolt，Joanna Adler，Donovan Fowler，Emerald-Angel Young，Daniel
Directors: Marilyn Agrelo
Country:
Duration: 1h 36m
Quality: 1080p
Release: 2010
IMDb: 5.3
