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The Effect of Gamma Rays on Man-in-the-Moon Marigolds (1972)

PG  |   |  Drama  |  30 May 1973 (France)
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From the Pullizer Prize winning play by Paul Zindel, this is the story of Beatrice Hunsdorfer and her daughters, Ruth and Matilda. A middle-aged widowed eccentric, Beatrice is looking for ... See full summary »



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Title: The Effect of Gamma Rays on Man-in-the-Moon Marigolds (1972)

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Cast overview, first billed only:
Nell Potts ...
Roberta Wallach ...
Judith Lowry ...
Richard Venture ...
Carolyn Coates ...
Mrs. McKay
Will Hare ...
Junk Man
Estelle Omens ...
Jess Osuna ...
Ellen Dano ...
Janice Vickery
Lynne Rogers ...
Miss Hanley
Roger Serbagi ...
John Lehne ...
Apartment Manager
Michael Kearney ...
Chris Burns


From the Pullizer Prize winning play by Paul Zindel, this is the story of Beatrice Hunsdorfer and her daughters, Ruth and Matilda. A middle-aged widowed eccentric, Beatrice is looking for her life in the classified ads while all about her is the rubble of an unkempt house. All she needs is the right opportunity, she says puffing on a cigarette. Poorly equipped to survive the vagaries of modern life, she has nonetheless always managed to muddle through. Ruth, epileptic and making her way through the rebellious phase of adolescence, seems doomed to make the same mistakes as her mother. Quiet Matilda, on the other hand, seeks refuge in her animals and her schoolwork. "Jesus, don't you hate the world, Matilda?" Beatrice asks her youngest daughter. The title of the film is also the subject of Matilda's science project at school and serves as a metaphor for the way life affects each of us differently -- how some are able to find opportunity in adversity and thrive and how some succumb when ... Written by Mark Fleetwood <>

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If you had a mother like this, who would you be today? See more »




PG | See all certifications »

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Release Date:

30 May 1973 (France)  »

Also Known As:

A Influência dos Raios Gama no Comportamento das Margaridas  »

Filming Locations:


Company Credits

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Technical Specs


Sound Mix:

(Westrex Recording System)


Aspect Ratio:

1.85 : 1
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Did You Know?


The play was originally produced in Houston in 1964. The movie version filmed in 1972, directed by Paul Newman and starred his wife, Joanne Woodward , and his daughter Elinor (Nell Potts). Woodward won the award for Best Actress at the 1973 Cannes Film Festival. See more »


Matilda: I've got to go to school. I'm late already. I've got a science test second period.
Beatrice: Pshh. Science, huh? Well, you tell Mr. Goodman there's a lot of work to be done around here, so he'd better not count on you spending your days with half-life. Tell him if he wants to find out about half-life, he can come and ask me; I'm the original half-life. I've got one daughter with half a mind, the other who's half a test tube, a house half-full of rabbit crap and half a corpse. That's a half-life, all ...
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User Reviews

A Truly Wonderful Film
6 January 2005 | by (Kentucky) – See all my reviews

"This is an adaptation of Paul Zindel's wonderful but tormented play. This play itself is compelling and has a kind of Tennessee Williams flavor; especially "The Glass Menagerie" and "A Streetcar Named Desire". The adaptation is very successful as the production designer (Gene Callahan) manages to transfer the book's psychologically oppressive ambiance to film; "shame hangs in the air of this house" like a cloud of poison gas.

Director Paul Newman gets performances from his cast that pull together parallel stories of how a "strong, strange, and beautiful" flower can unexpectedly spring from an environmental wasteland. His most difficult task is restraining or masking Joanne Woodward's earthy likability so that we waste little sympathy on her character. But using Woodward as the mother allowed him to get a once-in-a-lifetime performance from their daughter (Nell Potts as Matilda-Tillie in the play). Potts abandoned acting after this movie but her ethereal take on Matilda is right on the money and a big reason why the film works so well.

This is really just a story about Matilda's science fair project in which marigold seeds are subjected to varying amounts of gamma ray radiation (the independent variable in her experiment). Those flowers receiving a moderate amount of radiation bloom in amazing and wonderful ways. However, those flowers subjected to additional radiation either have their growth stunted or whither and die.

Meanwhile Tillie and her older sister Ruth are living an analogous story with their mother Beatrice in an extremely emotionally abusive household. In the play it is stated that Beatrice is insane but not how or why she became this way. In the movie the viewer soon reaches this same conclusion. Older daughter Ruth (an amazing performance by Eli Wallach's daughter Roberta) maintains a fairly normal lifestyle at school, she is a majorette and popular but is very selfish and demanding of attention. Notably she is also an epileptic, which is subtly significant because it is analogous to receiving an excessive amount of radiation. Tillie is very different (analogous to receiving a moderate amount of radiation), seemingly shy and withdrawn, she is actually very independent and has found an outlet from the family in her science projects. This outlet serves as a protective niche in which she can bloom.

A truly great scene is Matilda's acceptance speech at the science fair. She explains the results of her project and really lays out the main theme of the story for the viewer. Watch as she mentions how excessive radiation causes dwarf plants, at that point they cut to a closeup of Ruth in the audience. Both the experiment and the family illustrate that while a reasonable degree of adversity can actually be beneficial, too much of the same adversity will poison life.

While this would be a good film if focused solely on Matilda, it is elevated to extraordinary because Newman chooses to also make Ruth a central part of the story. The conventional "movie-way" to tell this story would be to make it an inspirational tale of triumphing over adversity; of free-will overcoming destiny. But fortunately Newman elects to show both sides of the story, in Ruth he shows someone who never has a chance, who cannot recognize her destiny or ever hope to overcome it.

Then again, what do I know? I'm only a child.

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