Kristen Stewart and Charlize Theron hide under bird cage veils on the June/July 2012 cover of Interview Magazine.

The 22-year-old actress sat down to chat about working with director Rupert Sanders on the fantasy flick, opening June 1st.

“One great thing that Rupert did as a director was put me in an environment that felt so real that all I had to do was live there,” Kristen shared. “Nothing ever felt silly—right down to the troll in front of me. With some things in a fantasy movie, where you’re in front of green screens and stuff, you have to have a pretty trustful imagination. You can’t be insecure or have that thing kick in that makes you go, ‘This is stupid.’”

Kristen added, “And to Rupert‘s credit, I very rarely went, ‘Really? What are we doing here?’ You know, Snow White doesn’t say a lot, and the movie is so hectic with things happening so fast that who she is wasn’t really defined in a line or a scene. It was something that we needed to find in between the lines—and that was scary and hard up until the last day.