Maggie Gyllenhaal will be hitting theaters this weekend in the family friendly sequel Nanny McPhee Returns as an overworked single mother who needs help with her wild children. According to the actress, her next couple of projects won’t be suitable for young audiences because one will have to do with the invention of the vibrator (yep) and the other is a wild rock n roll romance. During the promotional junket for McPhee Gyllenhaal opened up about her roles in Hysteria and the developing Bill Monroe biopic.

Here’s a little background on Hysteria and Gyllenhaal’s character who seems to be a free spirit in every sense of the word. If the premise for the film sounds a bit outrageous, prepare yourself because it’s based on a true story.

Maggie Gyllenhaal: In Hyseteria I play a firecracker whose father is a doctor who is in the business of curing hysterical women. He cures them basically by getting them off and that actually happened. I end up having a sort of unexpected love affair with this guy who works for him, and who by mistake invents the vibrator [laughs].

Moving on from the bedroom to the stage, she and her husband Peter Sarsgaard are both attached to a biopic based on music legend Bill Monroe and his tumultuous life.

Maggie Gyllenhaal: Bill Monroe, who invented bluegrass music had a kind of Sid and Nancy style affair with this woman Bessie Lee Mauldin throughout his life and T-Bone Burnett’s going to do the music and Callie Khouri who wrote Thelma & Louise wrote the script so we’re going to do that together.

That sounds like Oscar magic waiting to happen! Talented lead actors, Burnett (the go to guy for anything country, bluesy, or vintage rock n roll) and Khouri. That’s a match made in cinematic heaven.

Hysteria is scheduled to hit theaters sometime in 2011, while info regarding the Monroe biopic hasn’t been released.

What do you think of Gyllenhaal’s next two roles?