The budget for this movie was only $1,000,000
"The Female Brain" is a fictionalized adaptation of a nonfiction book of the same title by the neuropsychiatrist Louann Brizendine. Whitney also refers to this book in her stand up special called 'Whitney Cummings: I Love You'.
At the time this movie was shot, there is no fast food/burger joint Wendy's in the UK. Wendy's is slated to make a comeback in 2021 after not being in the UK since 2000.