"The Gimli in this scene from The Lord of the Rings is very obviously not John Rhys-Davies."
"And this Mace Windu from Star Wars: Episode I — The Phantom Menace is definitely NOT Samuel L. Jackson."
"Also in The Phantom Menace, you can see the plug leading to Padmé's light-up dress."
"There are multiple moments in Friends where it's pretty obvious the stand-in is NOT the actor."
"There's also a scene in Friends where you can just straight-up see the camera."
"Aaaaand you can spot Chandler mouthing "What am I supposed to say?" in yet another Friends example."
"In this scene from The Sopranos, there's a pizza box from a chain that only exists in Canada."
"In Final Destination 3, the infamous rollercoaster accident occurs as a result of two characters: Lewis and Frankie. Except after the premonition, they get off...meaning the accident should've been prevented."
"There were multiple scenes in the Euphoria play episode where you could see characters in the audience reacting...despite them being also onstage at the time."
"There's a scene in Gossip Girl where an extra was caught with only one shoe on."
"The actor switches out mid-scene in Road House."
"The actor's real teeth are clearly visible behind the fake monster teeth in this scene from Doctor Who."
"Steven Spielberg's reflection is actually visible for this whole Duel scene."
"A TON of TV shows and movies have characters use phones upside down, but I think the most glaringly obvious is this iconic Pretty Little Liars moment when Aria was "on the phone.""
"And finally, let's end on one of the most infamous...when they forgot to CGI Judi Dench's hand in Cats."
they all do...