Goofs

When Braddock shoots the gas station attendant in the head, just the attendant's brains and blood splatter on the glass of the window. This would only have happen if the bullet exited the attendant's skull. But if the bullet did exit the attendant's skull then it would have gone through the glass too (and left a shattered hole in the glass). Yet, after firing the shot, just "brains" and "blood" were on the glass, no bullet hole.

Right after Braddock kills Willie and Myron, the picture goes to a border crossing, where there is a stop sign (in English) with a smaller sign below it saying "POLICIA". But as it was the border between Spain and France, the sign should have either have been Spanish (ALTO) if on the Spanish side, or French (ARRET) if on the French side. If the border crossing had a lot of tourism and therefore necessitated an English sign, then there should also have been Spanish and French signs as well. But there was just this one, out of place, English sign.

Although the men in Harry's apartment in Madrid speculate that Maggie may be either 16 or 18 years old, Laura del Sol was 23 when she played the character and did not look like a teenager.

At the beginning of the film, a black Ford Zephyr Mark III pulls up outside Willie Parker's flat. It has a number plate ending in K, denoting that it was first registered in 1971 or 1972. However this model of car was only made between 1962 and 1966. The DVLA rules on personalised number plates forbid a plate that makes a car look "younger" that its actual year of manufacture.

When Braddock tells Myron they'll take Willie to Madrid as the three lads are taking a break at the white windmills, a camera and crew members are reflected in the sunglasses of John Hurt and Tim Roth several times.

Various crew members reflected in Tim Roth's sunglasses when Myron tells Braddock 'He's up to something' during their stop at the windmills.