Goofs

Just before the 'railing' at the metro station, Gonzo stays with Bulcu and C walks along with Tibi. When Bulcu informs Gonzo that his laces are undone, the latter stoops to retie them. In the very next scene C and Tibiare seen talking while walking but in the background Bulcu and Gonzo are seen both standing. Seconds later, Gonzo is seen standing up after getting done with the laces.

The shaving foam on Tibi's face changes during the chase of Bootsie.

When the subway train arrives at the station it's empty. When the ticket inspectors get on it's full of passengers.

The drunken woman on the escalator at the beginning of the film is wearing a belt which moves around between shots.

In the beginning of the movie, when the drunken lady is going down the escalator, she shoots the top off the champagne and it foams all over the railing in front of her, causing a large wet spot which she passes. In the next scene when she is drinking from the bottle, the champagne spot is in front of her, and she approaches and passes the same spot again.

The rail running seen in the movie would be impossible, as the metro types we see in the movie, like most metro trains, gather electricity from the rails (we see no electric cables overhead either, so this is definitely the case). Such a run would be impossible to survive, especially in the dark.

After the rail run, Bulcsú and the others would get stuck in the metro station until the next morning. The metro stations in Budapest are closed after the last passenger train leaves them. By the time Bulcs and Gonzó arrive to the station where the winner is determined, the station would already be considered emptied and closed.

The metro of Budapest, where the movie takes place, has no underground depot. All of them are on the surface, connected to an overground part of the metro line it belongs to.

Upon the rail run challenge, Bulcsú mentions an 'Eastern line'. There is no such thing in Budapest. There is only an 'East-West line' and a 'North-South line', but these terms aren't used since the early '90s. The correct term for the aforementioned 'Eastern line' would be the Red Line, or Line 2.