Continuity: When the main character has his fingers cut off with the chainsaw, you can see that three fingers (His pinky, ring and middle finger) get cut off. But in the next shot when you see his hand, and for the rest of the movie, he is only missing two fingers - his pinky and ring finger.
Great sites
Mistakes
When Paxton arrives at the station at the end of the movie he is supposed to be in Germany, yet there is a sign on the platform which reads 'Praha'. Also watch out for posters and signs in bad german language like an add which reads 'Neu am DVD' (should be 'Neu auf DVD') and a sign with 'Dieser Bahnhof wird Video - bewacht' ('Dieser Bahnhof wird videoüberwacht') on it. See more...
Trivia
In the second youth hostel they visit, people are watching TV. The movie they are watching is Pulp Fiction, directed by Quentin Tarantino, who is one of the producers of this film. See more...
Hostel mistakes
Continuity: At the end of the movie when the guy's head is in the toilet, blood is spilling out into the water. When the shot changes to an overhead shot of the body, the water has no blood in it.
Factual error: At the beginning of the movie, the main characters are supposedly in Amsterdam, but everyone is speaking German, it's not just the main characters doing this.
Hostel trivia
In the second youth hostel they visit, people are watching TV. The movie they are watching is Pulp Fiction, directed by Quentin Tarantino, who is one of the producers of this film.
Director Eli Roth makes a cameo as the American customer wearing a Boston Red Sox jersey in the Amsterdam coffee shop who is laughing at his friend struggling to take a hit off of a bong.
We see the American businessman that mistakes Paxton for another customer, hit himself in the head a few times with his gun. He actually hit himself so hard that he was bleeding for several hours.