Factual error: The movie takes place in 1987, but during the museum visit the main character is watching video from the Tiananmen Square uprising, which didn't occur until 1989. (00:52:40)
Factual error: RED Spy is shown grabbing hold of BLU Medic and transforming into the Medic disguise. He then attacks the Medic and kills him while retaining his disguise. However, by game mechanics and TF2 lore, this is not possible as Spy loses his disguise the moment he makes an attack. He would have reverted back to a RED Spy the moment he swung at Medic's throat.