She is credited as a co-producer in the film , which depicts simultaneously the lives and romantic relationships of the Petunia family .
Birch starred in the 2012 independent dramedy Petunia , playing the role of Vivian Petunia .
She is credited as a co-producer in the film , which depicts simultaneously the lives and romantic relationships of the Vivian Petunia family .
Birch starred in the 2012 independent dramedy Petunia , playing the role of Vivian Petunia .