People would make their own entertainment if sports and Hollywood were not available: games, stories, conversation, crafts, and so on. Our lives might even be a bit richer for it.
And in that sense, the entertainment industry captures value that we would be making anyhow. Yes their entertainment is better somehow, better in the sense that people will pay for it, so this is the bottom-line "better", inclusive of demand generators (eg, movie trailers, team rivalries, etc), and not necessarily a general-welfare "better".
You might even argue that this is welfare-capture: once you have seen the movie trailer (for free), or acquired team-loyalty (for free), your welfare becomes dependent on seeing what happens (not free). My son saw a trailer for WALL-E last night. Now he wants to see it. Having seen it, will his net welfare have increased? I don't know. He seems happy enough with his blocks and pencils and such.