Complex sentence: Roy Thomas was the writer and Howard Chaykin was the artist of the adaptation; like the novelization, it contained certain elements, such as the scene with Luke and Biggs, that appeared in the screenplay but not in the finished film.
Split into simpler sentences: Roy Thomas was the writer and Howard Chaykin was the artist of the adaptation. Like the novelization, it contained certain elements, such as the scene with Luke and Biggs, that appeared in the screenplay but not in the finished film.