Behind the scenes
- When a phone number that starts with KLondike-5 is dialed, K-L-5 is 5-5-5, a nonexistent exchange that was often used for fictitious phone numbers in movies. Thus, Doc's number KLondike 5-4385 is 555-4385.
- The phone number Jennifer Parker writes on the back of the Clock Tower flyer (for her grandma's house) also starts with 5-5-5 (555-4823). However, on page 22 of George Gipe's novelization, Jennifer's grandma's number is given as 243-8480.
- Back to the Future (mentioned only in phone book)
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