By Clark Collis
Updated May 12, 2015 at 12:00 PM EDT
Joel Geist/XLrator Media

These days, Danielle Panabaker is best known for playing Caitlin Snow on The CW’s superhero show, The Flash. But the actress has also appeared in a raft of films, and horror movies in particular, such as 2010’s remake of The Crazies and the same year’s The Ward, directed by the legendary John Carpenter.

Panabaker’s latest film is the science fiction thriller Time Lapse, which is released in cinemas and on VOD May 15. The film stars the actress, Matt O’Leary (Fat Kid Rules the World, the forthcoming giant wasp movie Stung), and George Finn (90210) as a trio of cash-poor roommates who discover that one of their neighbors has built a giant camera that can take photographs of the future. Directed by first-time filmmaker Bradley King, who co-wrote the script with B.P. Cooper, the result often comes across as a slacker-ized version of sci-fi cult classic Primer as our heroes’ attempts to financially benefit from their discovery leads to disagreement and disaster.

Below, Panabaker talks about Time Lapse, the season finale of The Flash, and that time one of her real-life roommates ate dog biscuits.

ENTERTAINMENT WEEKLY: I enjoyed Time Lapse a lot, despite being a little confused at a couple of points. Then again, I am an easily confused person.

DANIELLE PANABAKER: I was really impressed by Bradley and Coop, because they had plotted everything out so well. [But] even I kept going back to them and saying, Could you explain this to me one more time?

What attracted you to the project?

Reading the script, it was so exciting to get to the end, and learn what was really going on in the film, and then to go back and read it again. The challenge—without giving anything away—of adding these different layers, and trying to leave clues along the way for the audience withouth being too obvious, that’s what really enticed me.

I don’t think I’m gving anything away to say that the relationships between the roommates deteriorate as the film goes on. Do you have any terrible roommate stories yourself?

Yes, of course. I can laugh at them now, but they were not very funny at the time. I had a roommate who felt that it was okay to help herself to all of the food in the house. One day, I came home and she said, “Just so you know, these cookies are terrible.” And I looked at her and said, “Okay, thanks for the heads-up—they were dog biscuits.”

Time Lapse is not your first genre movie. Are you a fan of horror and sci-fi?

Truthfully, I didn’t watch televison or movies growing up at all, so I didn’t really know. But I’ve really come to enjoy them and appreciate them.

Do you have a favorite horror movie death of yours?

My death in The Crazies is pretty great. My death in The Ward was very, very gruesome. It’s very cool that John Carpenter gave it to me.

What was it like working with him?

It was wonderful. He’s such an old-school director. He’s not a man of a lot of words. He just trusts you to show up and do your job. It was great. I loved it.

Before I let you go, could you please tease the season finale of The Flash?

Oh, man. Our season finale is absolutely incredible. All season, we’ve been slowly uncovering more and more about Dr. Wells and it’s finally time to understand who he is and how evil his masterplan is. You will see a lot of familiar faces and, truthfully, the finale is devastating. There’s a lot of consequences—some really, really sad ones.