Herman Hupfeld to Robert Zemeckis in 7 Steps
- Herman Hupfeld wrote As Time Goes By
- As Time Goes By was sung by Harry Nilsson
- Harry Nilsson wrote The Puppy Song
- The Puppy Song is heard in You've Got Mail
- You've Got Mail features an appearance by Tom Hanks
- Tom Hanks appears in Forrest Gump
- Forrest Gump was directed by Robert Zemeckis