In Western and westernized media, characters are shown sucking up ramen noodles bowls then drinking the soup from the bowl at street side shops.
What is actually appropriate when eating at a traditional ramen shop?
Slurping noodles is fine. The theory is that sucking in air reduces the odds of getting burned and/or shows appreciation to the chef.
Drinking from the bowl, however, is a mild faux pas. While this is expected for Japanese soups like miso, which are served from small bowls without a spoon, ramen is considered a Chinese dish and it's served in large bowls that are awkward to drink from, so there's always a spoon on the side. The broth is usually also very salty and fatty, so most people don't eat all of it. All that said, ramen is casual fast food and it's common to see people drink it up directly.
Disclaimer: the movie is a comedy and the scene is tongue in cheek... but it's funny precisely because some Japanese do take their ramen very seriously!