Conversation

Icelandic phone numbers are 7 digits.

5xx-xxxx is usually Reykjavik (and surrounding area)
555-xxxx is usually my old home town (Hafnarfjörður)

Which means when movies go "555-1234" or something, then that's an actual phone number in Iceland.

When movies do this, I'll often look up the phone number in the Icelandic phone book.

Movie: "Yeah, my number is 555-xxxx"
Me: "Nope, that's a dentist in Iceland"