mcdonald and disney
when kids see a movie they want to go to mcdonalds to get the toy for the movie.mcdonalds is also advertising for the movies when they have the toys. there advertising gimics are based for kids.

sprite,mtv, viacom
they use each other to advertise their products which are aimed at teens.ex. when they had a "sprite" dance they paid teens to come and have fun, and they broadcasted it on mtv.