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An Invisible Sign (2010)

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Mona Gray is a 20-year-old loner who, as a child, turned to math for salvation after her father became ill. As an adult, Mona now teaches the subject and must help her students through their own crises.


Marilyn Agrelo


Pamela Falk (screenplay), Michael Ellis (screenplay) | 1 more credit »
1 nomination. See more awards »





Cast overview, first billed only:
Jessica Alba ... Mona Gray
Chris Messina ... Ben Smith
Sônia Braga ... Mom (as Sonia Braga)
John Shea ... Dad
J.K. Simmons ... Mr. Jones
Sophie Nyweide ... Lisa Venus
Bailee Madison ... Young Mona
Marylouise Burke ... Ms. Gelband
Ashlie Atkinson ... Lisa's Aunt
Crystal Bock Crystal Bock ... Panida Saleswoman
Mackenzie Milone ... Ann DiGanno
Ian Colletti ... Danny O'Mazzi
Jake Siciliano ... Elmer Gravlaki
Stephanie DeBolt Stephanie DeBolt ... Ellen
Joanna Adler ... Lisa's Mom


After a stroke of her father, the weird Mona Gray gives up of all the things she likes expecting that her father will be better. When she is 20 year-old, she is expelled from home by her mother to live her own life. Soon her mother lies to her friend Ms. Gelband, who is principal of a school, telling that Mona Gray is graduated and she hires her to teach mathematic to the third grade. Mona Gray feels affection for the orphan Lisa Venus and her odd behavior attracts the attention of the teacher Ben Smith. When there is an incident at school, the life of Mona Gray changes for good. Written by Claudio Carvalho, Rio de Janeiro, Brazil

Plot Summary | Plot Synopsis


count on the unexpected.

Motion Picture Rating (MPAA)

Rated PG-13 for mature thematic material and some disturbing images | See all certifications »

Parents Guide:

View content advisory »






Release Date:

7 October 2010 (USA) See more »

Also Known As:

An 1nvisible Si6n See more »


Box Office

Opening Weekend USA:

$854, 5 May 2011, Limited Release
See more on IMDbPro »

Company Credits

Show more on IMDbPro »

Technical Specs

Sound Mix:

Dolby Digital



Aspect Ratio:

2.35 : 1
See full technical specs »

Did You Know?


America Ferrera was originally cast as Mona Gray, but dropped out and Jessica Alba replaced her. See more »


When Alba was in class and put a child in a corner by the door she wrote two large numbers on the black board and wanted the children to tell her what sign (greater or less than) to put between them. When the child made a sound to get her attention you could see the less than sign already written on the board, but it was missing after the child from the corner gave the correct answer and the teacher wrote it on the board. See more »


[first lines]
Mona Gray: [narrating] I used to love my dad's stories, until the one he told me on my tenth birthday.
Dad: There once was a kingdom where everybody lived forever. But the problem with nobody ever dying was that the kingdom got very crowded. And so the king, getting squeezed out of his own castle by his endless royal lineage, issued a decree.
King: [still-life cartoon] Everybody in my kingdom, please pick one person from your family to die. We will have a mass execution that will bring forth much-needed ...
See more »

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User Reviews

Worst film I've ever seen!
19 February 2012 | by carol_weaver-609-871154See all my reviews

This was unbelievably billed on Sky Premiere as a lovable comedy. I found it a load of badly put together claptrap smattered with some laughs, one of which was the hairstyle bestowed on Jessica Alba. I can see how Mona would be unbalanced by her father (and the hairstyle), particularly in the opening scene where he tells the story of a family who each agreed to amputation of one part of their body so that no-one would be killed. Her behaviour throughout the film, including 'tapping out numbers' was verging on psychotic rather than nervous and shy.

Her mother came across as unbalanced too, when she told her to go because she couldn't help her dad, and allowed Mona to sleep in the street outside for three days with her possessions before having a cosy chat on the sofa together with her dad and saying that she had some savings that would get her a place. She couldn't have done that in the first place? She then lied to the headmistress of the local school saying that Mona had a degree, in order to secure a job for her. It seems that the headmistress didn't bother to check Mona's credentials (oo-er could that really happen these days?), then accused her of lying after the axe incident, when in fact it was her mother. The axe incident, where Mona ended up with an axe embedded in her leg, was the point at which my ever-patient husband finally conceded that it was a ridiculous film. Her mathematics teaching was run of the mill rather than inspired by a buff, and in fact I am sure that she was demonstrating maths too basic for the grade.

Then there was Mr Jones, former maths teacher and present neighbour whose car she bombarded every year with eggs, for a reason which wasn't properly explained at first. When a reason was finally given, to the effect that he hadn't cared when her father fell ill, it wasn't really borne out by the flashback. He knew it was Mona who had bombarded his car, and yet he let it go unpunished for years despite his annoyance and ignorance of the reason. Really? Though it might be down to the fact that he, too, was unbalanced enough to be taking refuge behind numbers, in the form of pendants which told Mona how he was feeling every day. Was there anyone normal? Only the audience, I think.

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