The best way to get representation is to concentrate on directing. After all, your job is Film Director. As a Director, you must focus on doing quality work, evolving an aesthetic and defining a style worthy of being noticed. From here build the most compelling reel you can, a focused body of work that makes director's reps and production companies sit up and take notice.
Shoot, shoot and shoot some more. Find ideas, stories, fashion shows, plays, concerts, community events - interesting and sometimes compelling things to shoot and direct. While ‘real jobs’ are best -- because not only do they pay, it is financial compensation which makes the gig a "professional" job. However, spec work is totally acceptable and usually gives you greater creative freedom, control and expression to define and cultivate your style and eye.
And know, after screening on the film festival circuit, youtube and your own eye-catching web site the reps and production companies will find you. Until then, familiarize yourself with platforms like carbonmade, about.me and WordPress themes to expose your director ambitions.
