The way that tomboys are represented in Hollywood films has changed over time, just as this article brings up. In the 1950's, the tomboy narrative involved a young, immature girl who would eventually make the transformation into a woman not through her clothes are style, but through her behavior when it comes to men. During this time, the tomboy narrative demonstrated that the most important way for a tomboy to become a woman was by pursuing a love interest in a man and by being submissive to men. Just as is seen in the movie Gidget where a young girl disappoints her friends with her tomboy actions because they think it ruins their chances of attracting men. Eventually, the tomboy transforms into a more feminine character by falling in love with a surfer man who rescues her multiple times.
When I thought of Hatch's idea that the 1950's tomboy narrative "demonstrates that gender is not a product of clothing an hairstyle alone but is predicated on a set of behaviors that bolsters a system of male dominance and female submission...", a few films in which I remember seeing tomboys represented came to mind. A good example of a modern day 'tomboy' film that challenges this 1950's ideal is the movie Miss Congeniality, in which a woman who has been more 'masculine' and a tomboy all of her life enters a beauty pageant in order to complete a secret FBI mission. The main character is transformed into a feminine woman by being taught certain 'lady-like' behavior, but the transformation into a woman mainly involves her physical makeover--she has makeup put on her, has her hair done, has a lot of waxing done and finally puts on a short sexy dress and a pair of heels to top off the look. Her tomboy character at the beginning of the film is seen as negative and her transformation into a more typically feminine woman is meant to be a positive thing. She also ends up having a romantic interest in one of her co-workers, who now finds her irresistible because of her sexy new look.
I think that the representation of tomboys in films today is much more complex, and there isn't one specific 'tomboy narrative', though I would argue that the tomboy narrative still almost always includes the tomboy having a romantic interest in a male character. An example I thought of in which a tomboy is portrayed in a very positive light is the Disney movie Mulan. Mulan wants to be able to fight in her father's place, so she runs away from home and portrays herself as a man so that she can fight. Mulan's character is very story and independent, yet of course toward the middle of the film, her character falls in love with a strong, masculine man, and her femininity is brought out through her actions toward this man as well as the way she appears physically at the end of the movie.