Under the terms of the deal, will manage third party online advertising for the website, including onsite media and sponsorship opportunities.
The , which went live in January, has already reported 8m unique users and more than 100m page impressions in the first month alone.
The website, which is part of the independent film and production company 111Pix Group, was founded by Alki David, a billionaire businessman. David has appeared in a string of films and TV shows, including BBC One hit 'Spooks' and more recently gangster movie 'The Bank Job'.
Matt Gower, director of 4DS, said: "FilmOn is the world's largest aggregator of independent film and television content.
"It is new, exciting and versatile for the consumer and already achieves fantastic traffic levels."