The Vision - S4-E12
Continuity mistake: Shots from inside the boat show all 3 boats without sails, but aerial views and shots from behind the boats shows them with sails. (00:36:30 - 00:38:40)
Vikings (2013)
1 continuity mistake in The Vision
Factual error: The snakes in the King of England's pit are all constrictors. They do not have venom and are too small to see a human as prey, yet they show a man dying from a bite by one of these snakes.