Zack Snyder's upcoming Superman reboot was rated by the MPAA for "intense sequences of sci-fi violence, action and destruction, and some language".
Henry Cavill stars as Superman/Clark Kent, while Amy Adams plays Lois Lane, Michael Shannon plays the villainous General Zod and Russell Crowe plays Superman's biological father Jor-El.
Crowe has described the film as being very psychologically complex, while producer Christopher Nolan has admitted that he considered the challenge of adapting Superman "far more difficult" than adapting Batman, as he did in his own Dark Knight trilogy.
It was reported earlier this week that Clark Kent's Daily Planet colleague Jimmy Olsen might have changed gender in the new film, after the IMDb listed an actress in the role.
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Man of Steel will be released on June 14.
Watch the trailer below: