Again, you can put up a image on thousands of websites, for the cost of almost nothing, that have the same effect. not exactly difficult, I've seen no billboards, no tv ad's for the film, yet I know what its about, who is in it and have seen the main poster that will have been used on billboards via "passively" seeing it on the internet.
TV ad's will also be easily the biggest cost with ad's being shown worldwide when again, a link to said video plastered all over the net, as it was anyway, achieves the same thing.
multi-faceted might work BETTER, but $100MILLION better? No, y a variety if billboard style images on ign/film sites, youtube trailer, etc, etc would capture 95% of the people who would see it on tv/around on billboards, but cost, probably $99million saved.