While sitting through Long Shot, I repeatedly thought to myself, “Next week I’m seeing a movie where a bunch of superheroes fight a giant purple man who has magic stones. That seems more believable.” But why should one form of on-screen fantasy be treated as more respectable than another? The romantic comedy is inherently a fantastical genre, complete with timed meet-cutes, witty banter, clear obstacles, and happy endings. Real relationships are far more tumultuous and complex, but we like watching them distilled on screen so we can get to the good bits and discard the messy realities. …