Goofs below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
Audio/visual unsynchronized: SPOILER: The mobile phone the couple attempt to use to call the Police after their son's shooting is a Nokia. When switched on, a Nokia start up tone is used. However, the key tone is that of a Motorola (the tone is heard when they press the Call button after 911).
