Complex sentence: The film follows Roger Greenberg (Ben Stiller), A New Yorker who moves to Los Angeles in order to figure out his life while he housesits for his brother, and he soon sparks with his brother's assistant, played by Greta Gerwig.
Split into simpler sentences: The film follows Roger Greenberg (Ben Stiller), a New Yorker who moves to Los Angeles in order to figure out his life while he housesits for his brother. He soon sparks with his brother's assistant, played by Greta Gerwig.