I want to know the answer to the following question:
Pat O'Brien portrayed which person in the film Knute Rockne?
All the background I'm provided with is that "In the film Knute Rockne, All American, Knute Rockne (played by Pat O'Brien) delivers the famous "Win one for the Gipper" speech, at which point the background music swells with the "Notre Dame Victory March".". Is that enough to answer the question?
Answer: yes