I no longer have this installed but I was meaning to report some issues. As I have no pics I will just put it here.
The opening cut-scenes are Vert - in widescreen resolutions. The field of view changes will not occur until the player is in-game for the first time. This behavior is present in all games except Postal 2 - Apocalypse Weekend.
What appears to be happening is that any cut scenes that play before a level has loaded are Vert - until in game. The missing pigeon-killing level cut scene is an example of this.
There is also a 4:3 FMV that is stretched that is related to the missing pigeon-killing level.