Honestly it really depends on the product and what you want. From my experience a lot of UPS , as long as you go for good and not cheap, have surge protection sockets included in the overall unit, but still don't have as many as a regular surge protector could provide. Also good UPS systems are costly, usually over $150 (not including the battery that needs to be replaced every couple of years), while a good surge protector can be far less than that( < $50).
On the other hand surge protectors won't provide you with a source of power when it does go out, however they will be cheaper and provide more ports to plug in whatever.
While watching a movie or something while the power is out does seem appealing you can easily do that on a laptop or something, and from the sounds of it you just want something to protect your electronics. Sounds more like you would need a surge protector compared to a UPS system since the later is more for important work you need to save or do when the power goes out. Personally I have a surge protector on my home theater system while a UPS on my desktop and accessories which works just fine.