Though his latest film is shaping up to be an awards-season miracle with heavy religious themes, Andrew Garfield will not worship at the altar of costar Jessica Chastain — or at least not the altar of her armpits.

Following Chastain's sultry viral red carpet moment last week at the Venice International Film Festival, which saw her Scenes From a Marriage costar Oscar Isaac putting his mouth on her arm in front of photographers, Garfield said he jokingly established boundaries with the Oscar nominee as they prepare to promote their upcoming biopic The Eyes of Tammy Faye.