Gun violence is American label. According to research, one in three people in United States knows someone who has been shot. What causes America to have more gun violence than other countries? Michael Moore, a director of Bowling for Columbine, interviews president of National Rifle Association, policemen, television producer and victims of gun violence in his American documentary in order to answer this question. Through the uses of imagery, irony and conflicts, Moore criticizes the easy access of guns in America, rendering countless people become disabled or die in gun violence. Therefore, United States should expand gun restrictions. Firstly, the imagery in Bowling for Columbine indicates the easy accessibility to guns and bullets in America that threatens American lives. As a result, government should have more control on gun. One example of imagery is bullet wounds on Richard and Mark. Richard and Mark are victims of a school shooting and one of them even needs to spend the rest of his life on a wheelchair. In the shooting, bullets are all bought in K-Mart without any obstacle. So Moore goes to K-Mart’s headquarters with these two boys and shows their bullet wounds to K-Mart’s manager in order to convince K-Mart stop selling ammunition. Those bullet wounds on two boys arouse audience’s fear as they create terrible images in viewers’ mind. Viewers are able to imagine how gunners fire rifles at two boys and how bullets go through victims’ bodies. More importantly, the imagery makes viewers feel sympathy for victims’ unfortunate and innocent. By using imagery, Moore conveys that people can purchase guns in local store easily and use them in a wrong way, resulting in the increase of gun violence and people’s disability. Therefore, gun laws in America need to be reformed. Another example of imagery is Moore getting a free gun for opening a bank account. Moore walks out of a bank in Michigan with a free rifle on his hand a