Courteney Cox was originally asked to play Rachel, but she asked to play Monica instead after reading the parts.

When Matt LeBlanc auditioned for the role he only had $11 dollars to his name. When the cast got their paychecks, the first thing that Jennifer Aniston bought was a car. Matt LeBlanc bought a hot dinner.

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.

At one point, Jennifer Aniston was shooting this series, Bruce Almighty (2003) and Along Came Polly (2004) at the same time.

30-second commercial spots to take place in the final ever episode sold in the UK for 1.2 million GB pounds (approx $1.8 million), the most expensive commercial slots of any TV program in England with the exception of sports.

No Friend ever made more money doing the show than any others. They started out making $22,500 per episode and ended up making $1million per show. All negotiations were done in unison. Kudrow said, "The six of us are far stronger than just one person."

The refrigerators in Monica's and Joey's apartments actually worked. Monica's was filled with water and other drinks for the cast and crew. Joey's was usually virtually empty, unless the inside of the fridge was going to be seen in a specific scene.

Before the show was cast, the main love interest was intended to be Monica and Joey.

In the first couple of episodes Chandler and Joey's apartment number was #4 and Monica and Rachel's apartment number was #5. However, in the later episodes, they are 19 and 20 respectively because the producers noted that 4 and 5 corresponded to apartments on lower floors and the Friends' apartments were higher up the building.

Source: IMDb

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