SPOILER:
A woman who witnessed a large fly eating a dog is not believed when she tells this story, and is eventually accused of having eaten the dog herself. She is gently taken away in an ambulance and told she'll "be getting help."
The French equivalent of the R-slur gets thrown around a few times, but less as a direct insult of a disabled person and more in the way a 12yo boy playing video games uses the R-slur at anything that displeases him.
Someone is held at gunpoint and forced to drive to a certain location, but the would-be gunman is comedically incompetent and the would-be victim manages to escape.