Research into advertisements

Companies use advertising to promote the companies products. Advertising is mainly used to increase the sales of the products/ services, to create and maintain a brand identity or brand image, to communicate a change in the existing product line, to introduce a new product or service, and to increase the buzz-value of the brand or the company.

There are several different ways to promote films through different medium:

Some of the most effective forms of Commercial advertising I found were:
Wall painting, billboards, printed flyers, radio, web banners, mobile telephone screens, web popups, bus stop benches, magazines, newspapers, sides of buses, subway platforms and trains, posters.

Some of the most effective forms of Digital Advertising I found were:
Radio advertisements, contextual ads such as search engine results pages, banner ads, in text ads, social network advertisements, online classified advertisements, advertising networks and e-mail marketing.