Complex sentence: The film premiered on November 30,2010, at a Royal Film Performance in London and was released worldwide on December 10,2010 and was commercially successful but met with mixed reviews, praising the performances and visual effects but criticizing the script and pace.
Split into simpler sentences: The film premiered on November 30,2010, at a Royal Film Performance in London and was released worldwide on December 10,2010. It was commercially successful but met with mixed reviews, praising the performances and visual effects but criticizing the script and pace.