John and Julie had a date one Saturday. They agreed to meet outside the cinema at \(8 \mathrm{pm}\). Julie thought that her watch was 5 minutes fast but in actual fact it was 5 minutes slow. John thought that his watch was 5 minutes slow but in actual fact it was 5 minutes fast. Julie deliberately turned up 10 minutes late while John decided to turn up 10 minutes early.
Who turned up first and how long had he/she to wait for the other to arrive?