Bell, 33, voices princess Anna in the movie. The actress said that while she never anticipated that the film would be such a huge success, she was aware that the team wanted to create "something different and modern."
"They were committed to making it not about romantic love," she said. "They wanted it to be about this really relevant battle between love and fear. In the end, it just kind of blossomed into this really beautiful project."
Bell went on to say that previous animated films often follow a somewhat unrealistic love pattern.
"Old cartoons were amazing, but you don't meet someone on the street and marry them the next day," she explained. "You have to get to know them."
Bell also said that Frozen had a large focus on "the love of family" instead of romantic love.
You can check out her entire interview, also featuring her progress in the battle against paparazzi stalking celebrity children, below.
Celebrity Families of 2014 [PHOTOS]