63 Bloopers in Friends That Have Somehow Gone Unnoticed By Most People

Technology has advanced to the point where directors and producers will make behind-the-scenes videos to show viewers what goes into producing the film. This allows viewers to catch vital moments where actors/actresses are replaced with their look-alike in certain scenes.

In season eight, there is an episode where Monica and Phoebe are sitting at the coffee shop talking, when the camera angle changes, and there is clearly a different person sitting where Courtney Cox is supposed to be. You have to wonder what brought on this sudden exchange – if Courtney Cox was there, why bring in her look-alike to stand in her place?