Kristen Stewart Talks 'Painful' Time After Split From Robert Pattinson

The duo split for good in 2013.

“It was incredibly painful,” Stewart told The Daily Beast. “Ugh, f----- kill me. It was a really good time for both of us to make this movie. Not all of my friends have been through what I’ve been through, or what some people have tasted at a relatively-speaking young age, and we were not expected to do anything. Everything that we did was explorative, and a meditation on what we already knew.”

She added, "We all felt akin by how much we’ve been through, and to utilize that is so scary. And to acknowledge it, reassess, and jump back into it? Usually you want to move on. But at least we could use some of that for some good."

"Equals" is a film about over-medication and Stewart said she feels like "It’s a good time to tell this story, I suppose, but I still think that this fear of being subject to one’s emotions has existed forever."

Stewart also recalled her first kiss, being that she and Hoult share a steamy moment in "Equals."

"It was horrible! It was so bad. It was f----- repulsive. I was 14 and it was gross. It was not good," she added.