Urban Dictionary defines a popcorn flick as "a movie that is mindless fun and has one thing (special effects, action, etc) and nothing else." That defines most of the offerings on the appropriately-named Popcornflix channel. These movies may be mindless, but they are fun, and they give movie lovers another great Roku entertainment choice. Click here to read the rest of the RokuGuide review of the Popcornflix Roku channel.