At the conclusion of filming in Atlanta, furniture and props from the set were donated to the Furniture Bank of Metro Atlanta, a charity that gives away free furniture to people moving into stable housing from homelessness and domestic violence.
On casting Aniston in the film, Gordon stated, "We created this character for Jennifer because she's absolutely fearless when it comes to playing somewhat unlikeable characters in comedies. For her, the more daring the role, the better."
Carol (Jennifer Aniston) and Clay (T.J. Miller)'s dad appears twice in two separate photographs shown within the film - one is a portrait hanging in Clay's office and the other is a Polaroid that Clay keeps on him. It is very apparent that Carol and Clay's dad is actually Jason Bateman (Josh) wearing a wig.
There is a sign on Tracey Hughes (Olivia Munn)' office wall that reads, "The only stupid questions are the ones you ask me before you ask the Web (or any question before my coffee)."
While the title of the movie was inspired by an SNL (1975-) skit called "Office Christmas Party", the story itself was an original idea of Josh Gordon & Will Speck.