Complex sentence: Ratajkowski earmed her first leading role, opposite Zac Efron, in "We Are Your Friends", a musical drama released in August 2015, and was part of the film's promotional tour to Europe and North America.
Split into simpler sentences: Ratajkowski earmed her first leading role, opposite Zac Efron, in "We Are Your Friends", a musical drama released in August 2015. She was part of the film's August 2015 promotional tour to Europe and North America.