The only other film from Thomas Vinterberg that I have seen is The Hunt, which also starred Mads Mikkelsen. It was a good movie, in large part because Mikkelsen was so interesting in it. Another Round is more of an ensemble piece than was The Hunt ... Mikkelsen stands out, but he's not the entire focus of the film. The story, of four high-school teachers who come up with the idea of trying to maximize their job performance (and their lives) by getting just drunk enough to bring out their best, is different at least.
I can't speak of the veracity of the image Another Round paints of a place where half the country, including the high-school kids, are drunk. (The Danish title is Druk, which means drinking.) Things get interesting when the teachers first find their abilities enhanced. It feels like Vinterberg wants us to believe the idea that drinking makes us better people. But things get carried away, as you know they must. They base their experiment on a theory that apparently is actually espoused by someone, that people need to raise their blood alcohol level to 0.05 to achieve peak performance. Once the four are successful (at least in their eyes), they wonder why they should stop at 0.05. Wouldn't things improve even more if they got drunker? Which they do.
The blend of comedy and drama isn't always smooth ... perhaps it isn't meant to be. There are plenty of fun (not necessarily funny) moments, and of course, there are moments of great drama, especially around the crumbling marriage of Mikkelsen's Martin and his wife, Anika (Maria Bonnevie). I was never sure just how tragic this was supposed to be. We never really see Martin and Anika when they are happy, so we don't have much at stake with their relationship. Overall, Another Round is about the four male teachers; it is sneakily a guy movie.
Everything changes in the final scene. Mikkelsen breaks into a drunken but still stylish dance, and for a couple of minutes, I couldn't keep the smile off of my face. For a brief period, I was unconcerned with what Vinterberg was trying to say. It's a lovely moment.
Another Round is nominated for two Oscars, Best International Feature and Best Director, which is unusual. I've seen all five pictures in the directing category, and Vinterberg doesn't stand a chance of winning. I haven't seen the other "international" movies, so I can't hazard a guess about that category.