The document provides summaries of the opening title sequences for three films: Boyhood, Submarine, and The Kings of Summer. For Boyhood, the titles are in a handwritten font implying it is about teenagers, and no actors are listed. For Submarine, the font is bold and clear with distribution companies listed first and no music. For The Kings of Summer, the titles are also in a handwritten font on a beach and include production companies, with a song playing and no actor names.