John Krasinski, Jenna Fischer, Rainn Wilson and more share behind-the-scenes secrets with ET on the set of ‘The Office’ in 2008. The cast share what the atmosphere was like on set on the NBC series and how the popularity of the show changed their lives. Plus, John and Jenna react to Jim’s gas station proposal to Pam and share how they had to keep the scene a secret from their castmates.
