Maggie Gyllenhaal went back to school for her new filmThe Kindergarten Teacher literally.

All of the kindergarten stuff, we shot as if I were their teacher, she explains.

So they knew of course that I wasnt actually their teacher, but I would teach classes.

maggie-gyllenhaal

And [cinematographer Pepe Avila del Pino], who shot it, would shoot us almost documentary style.

So I made a relationship with all the kids that way.

If they needed to go to the bathroom, they would ask me.

If they were uncomfortable about something, they would ask me.

We didnt demand of him that he be more than a 5-year-old, she says.

The KindergartenTeacherwill hit theaters Oct. 12, 2018.