Question: What plot follows Barden University's all-girl a cappella group, The Barden Bellas, as they compete against another a cappella group from their college to win Nationals, and starred an actress known for her role of Alexis in the party film "Project X"?
Sentence (from "Pitch Perfect"): The film is loosely adapted from Mickey Rapkin's non-fiction book, titled "Pitch Perfect: The Quest for Collegiate a Cappella Glory".
Relevant evidence: Yes