Working on a science-fiction film is no easy feat, especially if we're talking about some of the earlier sci-fi classics. While most sci-fi films are consumed by special effects, decades previously, film crews were forced to rely on their own creativity if they wanted to achieve some true movie magic.

In an interview with The Classic Film and TV Cafe at the Williamsburg Film Festival, Audrey Dalton spoke about her experience filming the hit film, The Monster That Challenged the World. Dalton, who played Gail MacKenzie, mentioned that while she was a bit confused by the film initially, she had no misgivings about the job she had been hired to do.

"I was puzzled by it," she said. "I was a working actor. I believed that was my job and you did your job. In those days, I was not picking and choosing. I never really did, unless it was offensive or something I didn't want to do. I thought it was a very interesting experience—as all my movies were in different ways."

While the film has its fair share of tense moments, Dalton revealed that the filming process was anything but uncomfortable, despite the tone of the movie.

"The monster stuff was fun, crouching behind a desk with a monster breaking down the wall," she said. "But you had to play it very straight. Once you start seeing the funny side of it, it doesn't work."

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The film also gave Dalton an opportunity to work with esteemed actor, Tim Holt, who played John Twillinger. Dalton remembered him fondly, offering him the highest praise anyone can give an actor: that they weren't like an actor at all.

"Tim Holt had come out of retirement to do this movie. He was a quiet, very nice man—the most "unactor" actor that I ever worked with."