The foremost action you need to take in order to load the film in your camera is to open up its back lid where the film has to be loaded. In most of the cameras, there is an adjustable wheel at the top of the camera that is used to open up the back lid. After the lid has been opened up, place the film cartridge inside the camera. There is a special spot made for placing the film. Watch closely around that spot, you will see that a diagram is made for you there that will be showing how to place the film cartridge.
Once you have placed the film, pull its leader, and engage it with the winding mechanism that is present on the other side of the camera body. Close the lid. Most of the cameras have the ability to load the film itself. However, if you are having a SLR that does not load the film, then make sure that you pull at least three inches of the film from the leader, and then wind the film by rotating the post.
Once your film has been completely winded, close the lid of the camera, and advance two frames of the film. It will further ensure that your film has been loaded perfectly. Once the frame indicator, which is at the top of your camera, indicates that you have reached at the first frame, stop advancing your film. Your SLR camera is ready to shoot.