Character mistake: Right after the firefighters have removed Flick's tongue from the flagpole, notice the police officer on the left (Flick's right). He is wearing his sidearm on his right but his Sam Browne cross strap is attached to his belt on his left. The whole point of the cross strap is to support the weight of the sidearm, so the officer is wearing it backwards.
Suggested correction: With exception of the Royal Canadian Mounted Police, the Sam Browne belt shoulder strap is typically worn over the right shoulder and attached to the belt on the left side.
This is correct for military uniforms - once again, the Sam Browne is used to support the weight of a weapon (in the military, this would be an officer's sword, always worn on the left side). However, for police uniforms, the shoulder strap is worn over whichever is the non-dominant shoulder (usually the left). Once again, this is to support the weight of the duty weapon. If you look at agencies such as the Kansas Highway Patrol, New Mexico State Police, and various police honor guards throughout the U.S., you will see that the strap is worn primarily over the left shoulder, since most people are right-handed and therefore would wear a duty weapon on their right side.