You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who played the phantom in the phantom of the opera movie?" whose answer is Gerard Butler.
Each document should contain about 30 words, and these documents should contain useful information.

Query: casting of the phantom of the opera movie
Useful Output:

Doc 1: Gerard Butler · Emmy Rossum · Patrick Wilson · Minnie Driver · Miranda Richardson · Ciarán Hinds · Related Articles · Follow Us.
Doc 2: Though the film retained most of the songs from the stage musical, it found its cast away from the Broadway stage: its stars—Gerald Butler (
Doc 3: Cast & Crew ; Gerard Butler. The Phantom ; Emmy Rossum. Christine ; Patrick Wilson. Raoul ; Miranda Richardson. Madame Giry ; Minnie Driver. Carlotta
Doc 4: Starring in the French-language contemporary adaptation will be Deva Cassel (Netflix's The Leopard), Julien De Saint Jean (The Count Of Monte
Doc 5: Cast 140 · Gerard Butler · Emmy Rossum · Patrick Wilson · Miranda Richardson · Minnie Driver · Ciarán Hinds · Simon Callow · Victor McGuire. Piangi. Jennifer