Collecting Movie Posters
Though the movie poster can be rather generic, I think he might be right. Just the way the poster is set up, and how the movie is portrayed, does say something about the time from when it came out. The colors and the type of font also give away the time period, as do the clothing on the stars and the accessories they are wearing.
If you want to collect the movie poster or posters you like, you can find them for free in some cases. Quite often, video stores get them as promos, and if you wait until the promotion is over, they may give it to you for nothing. You might want to ask as soon as you see it though, as someone else may ask before you do.
