I don't know how many of you have seen Forrest Gump, it is 20 years old, but you might be amazed at the things in our culture it introduced. This article talks about some of these things. I recommend it, ( the article AND the movie) especially if you are having a hard time understanding the concept of Intertextuality. This article defines Intertextuality when it talks about the parodies by MADtv, John Waters, The Simpsons, Lt. Dan Band, etc. Scores of media have referenced this movie. Enjoy.
People Magazine online http://www.people.com/article/forrest-gump-20th-anniversary