Before we look at the naughty side of the mature film, let us take a look at what you can expect from MATURE4K. Backstage of Her First Porn Mature Movie. The main character is a woman in her forties, and it's hard to believe that she's playing a grown woman! However, this is exactly what she wants, and she does just that. The actress wanted to try as many naughty and sexy things as possible in order to achieve her goal of being the most naughty character ever to appear in a porn movie!.