Dear [Penfriend's Name], I hope this letter finds you well. I wanted to share with you about my favorite film. It's called "The Shawshank Redemption." This movie is a powerful drama that tells the story of friendship and hope in a prison setting. The acting is superb, and the storyline is captivating. I highly recommend watching it if you haven't already. Let me know if you have any favorite films too! Take care, [Your Name]