You would of course need to be able to use the editing software else you can take help of a friend who is familiar with it. You can also go for a basic software which is intuitive and easy to use and then you can learn in the process. During editing you can also layout the soundtrack. Filmmaking software generally come preloaded with stock sounds, it they are not satisfactory you can download a variety of sounds from the Internet. With the end of this process you will have completed your film.
Now what? You can either be satisfied with showing your film to family and friends or you can go ahead and distribute it to a global audience. There are many popular video sharing sites where you can upload your film. Many of these sites are actively followed by amateur as well as professional filmmakers. Who knows you might just turn out to be the next great