Thirteen is a difficult age. I know this as a parent, and I also know it as a rabbi who interacts with lots of 13-year-olds. I know this as well as a student of Torah. And now I know it as a moviegoer.
There are two different ways of reminding us that Purim is around the corner. One is the PR method, involving newspaper ads, thousands of fliers and large street banners, usually advertising the upcoming Purim carnivals. The other involves no media or marketing but has existed for more than 2000 years. It's called Shabbat Zachor (the Sabbath of Remembering).