An Invisible Sign (2010)

PG-13  |   |  Comedy, Drama, Family  |  7 October 2010 (USA)
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 5.4/10 from 3,058 users   Metascore: 23/100
Reviews: 33 user | 17 critic | 7 from

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.



(screenplay), (screenplay), 1 more credit »
Watch Trailer
0Check in

Watch Now

From $9.99 on Amazon Video

1 nomination. See more awards »



Learn more

People who liked this also liked... 

Documentary | Short | Family
    1 2 3 4 5 6 7 8 9 10 -/10 X  

NO SMALL PARTS is the heartwarming and inspirational short documentary about a group of kids looking to forge their identity as they try to put on the first musical their school has ever ... See full summary »

Director: Marilyn Agrelo
Hoot (2006)
Adventure | Comedy | Family
    1 2 3 4 5 6 7 8 9 10 5.6/10 X  

A young man (Lerman) moves from Montana to Florida with his family, where he's compelled to engage in a fight to protect a population of endangered owls.

Director: Wil Shriner
Stars: Logan Lerman, Luke Wilson, Brie Larson
Bandslam (2009)
Comedy | Drama | Family
    1 2 3 4 5 6 7 8 9 10 6.4/10 X  

A new kid in town assembles a fledgling rock band -- together, they achieve their dreams and compete against the best in the biggest event of the year, a battle of the bands.

Director: Todd Graff
Stars: Aly Michalka, Vanessa Hudgens, Gaelan Connell
Flipper (TV Series 1995)
Family | Drama | Adventure
    1 2 3 4 5 6 7 8 9 10 5.3/10 X  
Stars: Laura Donaldson, Jessica Alba, Brian Wimmer
Prince Charming (TV Movie 2001)
Adventure | Comedy | Family
    1 2 3 4 5 6 7 8 9 10 6.1/10 X  

After an extramarital indiscretion, a fairy-tale prince and his sidekick are turned into frogs for all eternity or until the prince can convince a maiden to kiss and then marry him.

Director: Allan Arkush
Stars: Martin Short, Christina Applegate, Andrea Martin
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 5.9/10 X  

Astronaut Scorch Supernova finds himself caught in a trap when he responds to an SOS from a notoriously dangerous alien planet.

Director: Cal Brunker
Stars: Brendan Fraser, Sarah Jessica Parker, Jessica Alba
Radio Rebel (TV Movie 2012)
Drama | Family
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

High schooler Tara, a girl so painfully shy that she can't even write a single letter on the board in front of a class, has an awesome secret - she is "Radio Rebel". When Tara puts on that ... See full summary »

Director: Peter Howitt
Stars: Debby Ryan, Sarena Parmar, Adam DiMarco
Comedy | Family | Romance
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

Routinely exploited by her wicked stepmother, the downtrodden Sam Montgomery is excited about the prospect of meeting her Internet beau at the school's Halloween dance.

Director: Mark Rosman
Stars: Hilary Duff, Chad Michael Murray, Jennifer Coolidge
Comedy | Family | Fantasy
    1 2 3 4 5 6 7 8 9 10 6.2/10 X  

Molly Mahoney is the awkward and insecure manager of Mr. Magorium's Wonder Emporium, the strangest, most fantastic, most wonderful toy store in the world. But when Mr. Magorium, the 243 year-old eccentric who owns the store, bequeaths the store to her, a dark and ominous change begins to take over the once remarkable Emporium.

Director: Zach Helm
Stars: Natalie Portman, Dustin Hoffman, Jason Bateman
Action | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 3.6/10 X  

A retired spy is called back into action, and to bond with her new step-children, she invites them along for the adventure to stop the evil Timekeeper from taking over the world.

Director: Robert Rodriguez
Stars: Jessica Alba, Jeremy Piven, Joel McHale
Rock Me, Baby (2003–2004)
Comedy | Drama | Family
    1 2 3 4 5 6 7 8 9 10 5.4/10 X  

"Rock Me Baby" is a fun, irreverent look at relationships and parenthood as seen through the eyes of Jimmy, a hip, flagrant shock jock. Jimmy lives for the adrenaline rush he gets from his ... See full summary »

Stars: Dan Cortese, Bianca Kajlich, Carl Anthony Payne II
Dear Eleanor (2016)
Adventure | Comedy | Drama

Two teenage girls travel across the U.S. in 1962, during the chaos of the Cuban missile crisis, in search of Eleanor Roosevelt.

Director: Kevin Connolly
Stars: Isabelle Fuhrman, Liana Liberato, Jessica Alba


Cast overview, first billed only:
Mr. Jones
Young Mona
Ms. Gelband
Lisa's Aunt
Crystal Bock ...
Panida Saleswoman
Ann DiGanno
Danny O'Mazzi
Elmer Gravlaki
Stephanie DeBolt ...
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:





Release Date:

7 October 2010 (USA)  »

Also Known As:

An 1nvisible Si6n  »

Filming Locations:


Company Credits

Show detailed on  »

Technical Specs

Sound Mix:


Aspect Ratio:

2.35 : 1
See  »

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 »


Levan Beeze: Ann's in a bad mood because her parents are getting divorced, my mom is her moms attorney.
Ann DiGanno: They're not getting divorced, they're getting legally separated.
Mona Gray: Levan, client attorney confidentiality is confidential, so, shh.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

The Sum of its Parts
14 July 2014 | by (United States) – See all my reviews

A female lead in a story about math? The synopsis was somewhat misleading, or perhaps I wanted it to be complicated. I was expecting a twist on something along the lines of "Stand and Deliver" or "Good Will Hunting." It turns out this is simple math and the plot is not a formula.

The heroine is a socially inept third grade teacher (Jessica Alba), a "weirdo" to the apparently well adjusted children and their ordinary, dysfunctionally functional parents. It is a quirky story that gets off to a jumpy start. I almost stopped watching then realized I was enjoying the mess. In an early scene, the first day of school, the children are arranged into a human equation. It escaped me then that was a play on the theme.

When I notice that a film I like is receiving mixed or bad reviews am compelled to contribute my own evaluation, to assist those on the fence. This isn't for everyone. Anyone who doesn't grok "the human equation" probably won't get the result. The other extreme might find it overly simplistic. Those who've valued themselves as odd, complex, uncommon denominators will be able to relate.

1 of 1 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Oscar for Jessica brenton20
Filming in NYC? jl323-1
Her father was mentally ill and so was she! gadance
For those who have read the book... gitano_apo
Direct To DVD? chillymac26
Loved the book tami_themusical
Discuss An Invisible Sign (2010) on the IMDb message boards »

Contribute to This Page

Create a character page for: