A soundbar is good for movies. Because you need speakers that are good at the high and mid-range of the frequencies and just right at the lower end to pump dialogues and other sounds better. The soundbar can fulfill this requirement better than the TV. To spice up the performance even better. You can install a subwoofer and go for a soundbar that provides two separate speakers for the rear positions. After this, the movie experience will be at the next level. For the movie, I will recommend a soundbar that has a sub and two separate speakers for the rear positions.