Product placement can be defined as:
Until the mid-1980s, many movie producers believed they were obligated to ask permission of a company to have one of its products pictured in a movie scene. However, that all changed in 1982 with the release of E.T. the Extra-Terrestrial. In the movie, there is a very clever scene where E.T. is lured to and enjoys eating Reese’s Pieces, a Hershey’s product.