In the opening scene in Dublin, a North American Ford Focus is used as a police car. This car is not available in Europe.
The Beethoven concert is shown as taking place in London's Royal Albert Hall, a very large, circular hall. The venue used for the interior scenes is much smaller, and rectangular.
As Cullen leaves Mountjoy Prison, a sign on the wall reads "Kingswood Prison".
When Sean Cullen posts a letter into a green Dublin postbox in the opening scene, there's a US-style "ONE WAY" road sign in the background.