《疯狂动物城》票房后劲十足，赶超《冰雪奇缘》

Last weekend, the latest Disney movie, "Zootopia, " broke records. The movie had the largest opening weekend for a Disney animated film.

People across the United States bought more than 75 million dollars worth of tickets. The box office totals pushed the popular movie, "Frozen, " to second place in opening weekend success.

Experts say "Zootopia" is expected to stay strong this weekend. They predict it will make as much as 50 million dollars more.

Already, the movie's worldwide box office total is more than 230 million dollars. "Zootopia" is a city of animals.

The movie stars a bunny rabbit police officer and a fox criminal who team up to find a missing otter. He is among several animals that have suddenly disappeared from the city.

Actor Ginnifer Goodwin provided the voice of officer Judy Hopps. Justin Bateman is Nick, the con artist.

Critics have strongly praised "Zootopia" for its sharp humor and strong message in its portrayal of relations between two kinds of animals in the city. Jared Bush and Phil Johnston wrote "Zootopia."

They told reporters that it started out as a spy movie set in several different animal worlds. But they found the mammal world especially interesting.

So they changed the story. Bush and Johnston said building the imaginary world took a lot of research.

They both spoke about it to the website Inside the Magic. Bush said they asked themselves, "What's this world like?