a film so unique, intoxicating and bizarre that it not only demands another viewing, but is also forgivable as a satirical comedy where the jokes eventually take the back seat.

If you like to be scared, if you like to laugh, and if you like to learn a thing or two at the movies, this absolutely cannot be missed.

The movie turns out to be a little better than the average. Starting from a romantic formula often seen in the cinema, it ends in the most predictable (and somewhat bland) way.

The tone of this movie is interesting -- the stakes are both dramatic and high, but it's balanced with a lot of fun, tongue and cheek dialogue.

sure, it is far to be the right word. but it is the most comfortable. for a beautiful story, for a great job from Jessica Alba, for the touching atmosphere, for the performances of Marylouise Burke and J.K. Simmons. maybe because I am teacher, Mona Gray seems to me one of the most seductive characters from the last decade of cinema. because this job remains a refuge, has deep roots in the experiences of childhood, impose a form of train of exercises to escape from yourself. if a sin of film must be defined, it is , maybe, the desire of director to be a complete work - from traumas to the love story. but it is a small, almost insignificant sin. so, a lovely/touching film.

A woman-child, in pigtails the whole time, compulses by knocking and counting random numbers while depending on magical thinking. She has severe Obsessive Compulsive Disorder, debilitating anxiety, and is grossly stunted emotionally and mentally. Her father is completely disabled due to his own mental illness. So the film tries to make something of these very troubled people. However, it fails. It is difficult to care about the main character since she barely utters a word and runs away from most anything, which voids meaningful character interaction. In fact, it's difficult to care about any of the characters. Most of the school children are written with cliché, and urine has its close-ups that do not advance the story. There are too many ridiculous plot points, like someone being hired for a sensitive position without an interview or credentials, a highly unlikely instance of weapon wielding, a sweetly stalking male, an older person leaving behind something hard-earned to get lucky, and an unbelievable ending to make your eyes roll out of your head.Apparently in this filmmaker's world, home-study approval is not a requirement, much like teaching certifications...and worthwhile scripts. 2 out of 10.

After a stroke of her father (John Shea), the weird Mona Gray (Jessica Alba) gives up of all the things she likes but mathematic expecting that her father will be better. When she is 20 year-old, she is expelled from home by her mother (Sonia Braga) to live her own life. Soon her mother lies to her friend Ms. Gelband (Marylouise Burke), 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 (Sophie Nyweide) and her odd behavior attracts the attention of the teacher Ben Smith (Chris Messina). When there is an incident at school, the life of Mona Gray changes for good."An Invisible Sign" is among the worst movies I have ever seen, with an awful and senseless story. The plot is imbecile, beginning with Mona Gray's mother expelling her daughter out of her home without any reason. Then Ms. Gelband hires a clumsy and unprepared teacher without checking her credentials or background. Instead of mathematic, Mona Gray actually teaches and is attracted by numbers. She brings an ax to a classroom with kids in a total irresponsible attitude. The corny and lame conclusion, with Mona Gray rehired by the school and easily getting the custody of Lisa is terrible. The worst is that, this is the type of movie that we see expecting to like it, but the awful story is unbearable independently of the cast. Last but not the least, Sonia Braga lost her beauty and is unrecognizable. The years are cruel for everybody!My vote is two.Title (Brazil): "Matemática do Amor" ("Mathematic of Love")

You mention an actress like Jessica Alba and the first thing you think of is one of Maxim's top hundred most beautiful women in the world. Geeks possibly remember her more for "Dark Angel" or "Fantastic Four" so it is often obvious to forget that she really is a very talented and gifted actress, and that revelation is very well proved in "An Invisible Sign." Jessica plays Mona Gray, a withdrawn socially awkward math prodigy whose heart belongs to her father, played by the masterful John Shea (Lex Luther from "Lois & Clark"). It isn't revealed in the movie, but her father seems stricken with Alzheimers, and her mother (Sonia Braga of "Kiss of The Spider Woman") kicks her out of the house because he requires too much attention. Literally living in the front yard, Alba soon has a job as a math teacher at her old school where the real world soon starts realizing that she too is sort of special. Quirky, eccentric and withdrawn, Alba really shines as she tries teaching her love for math and numbers to children, and at the same time, learning what the real world is about. One of the people to help pull her out of her shell is Ben Smith (Chris Messina of "Argo"), the physical education teacher, and a cute blonde girl desperately in search of a parent figure to bond to, and the person she bonds with is Alba, much to her consternation and disbelief. The movie is even more heightened by JK Simmons (J. Jonah Jameson from the "Spiderman" movies), playing her former math teacher and next-door neighbor, and Bailee Madison (Female Max from "Wizards Of Waverly Place") as her younger counterpart. The movie is completely charming and mystically-endearing, a welcome departure from Alba's bikini-clad roles or strong female characters trying to save the world, heightened by Alba's wonderful quirky and eccentric performance.