About Last Night is a very unique romantic comedy. And for a genre that's practically built around clichés, that's really saying something. It intertwines the romance and the comedy from different angles by showing two couples, both with polar opposite relationship dynamics. There are essentially four leads in this movie and they're all excellent, especially Hart and Hall. They're an absolute riot together. You can tell some of the stuff is improvised and they bounce off each other incredibly well, and you actually believe that these characters can fall in love.
The "normal" couple has the more romantic story, and sadly they're not nearly as fun as the crazy couple, but that's kind of the point. There are some heartfelt moments in there, and the witty writing helps a lot. Some plot lines in the movie are predictable, some are filler, but the movie as a whole is diverse and totally engaging. It's structured in a way that it jumps from season to season, showing the peaks and valleys of the two relationships and how the friendships between all four characters are affected by it. There is seldom a dull moment in About Last Night, and you can't say that about many romcoms.
What elevates this movie in particular, though, is Kevin Hart. He's absolutely hysterical. I would watch a full two hour movie of just his character, he's that good. This is more proof that Hart is a comedy genius (and this is coming from someone who doesn't care much for his standup); he just needs the right vehicle to showcase it completely. Here, he just isn't in it enough. I mean, he's in it a lot, but he's just so damn good you can't get enough. His chemistry with everyone is great, and it doesn't even feel like he's acting. Not to say the other actors aren't as good - they're great - but Hart (and his relationship with Hall) basically steals the movie.
About Last Night isn't the be all end all of romantic comedies, but it's different enough to separate it from the pack. It handles both the romance and the comedy with finesse (and plenty of vulgarity), and it features Kevin Hart unleashed. If you're a fan of his, this is a must-watch.