Complex sentence: It is also the highest-grossing film in the series, having earned over $748 million worldwide and received an Academy Award nomination for Best Visual Effects, making it the first "X-Men" film to be nominated for an Academy Award.
Split into simpler sentences: It is also the highest-grossing film in the series, having earned over $748 million worldwide. It also received an Academy Award nomination for Best Visual Effects, making it the first "X-Men" film to be nominated for an Academy Award.