I saw Superman Returns the other night and a couple of things jumped out at me. First, there was an incredible amount of advertising before the previews. Two of the spots were even from cable television stations advertising their line-ups. TNT had a spot for their show Saved, and the ABC Family Channel ran a commercial for their new show, Kyle XY. Advertising before the previews is normal, but I don't remember seeing this many ads, especially from national television stations.
The movie also featured a lot of product placement, courtesy of Jay May from Feature This. Product placement in movies has become such a big deal that companies such as Feature This now exist to handle all the commercial traffic. The movie features Audi, Avaya, Budweiser, Nikon, Mountain Dew, Steinway and I assume Samsung because they are listed as a partner on the movie's Web site.