In Chandler''s and Joey''s room there is a poster with boxing kangaroos which says "Kangaroo Boxer" in Russian.
In the last few months of shooting Friends, Courteney Cox became pregnant, but, seeing as Monica wasn''t supposed to be able to have a baby, they covered up her pregnancy by making her wear baggy clothes while shooting the show so no one could tell.
In the episode "The One After the Superbowl" (episode # 2.12), the other production assistant that Julia Roberts is conversing with his her actual sister, Lisa Roberts Gillan.
James Michael Tyler was given the part of Gunther because he knew how to operate a cappucino machine.
Gunther was not originally a speaking part.
James Michael Tyler was actually working in a coffee shop in Hollywood when he got the part of Gunther. He kept his coffee gig for the first four seasons of Friends.