With a pandemic in the midst, ‘Love and Monsters’ is a timely film that inadvertently reminds us that heading outdoors can be dangerous. It also reminds us that there are rules to follow in order to survive. For all that it is worth, the post-apocalyptic film is both silly and fun. It rides on O’Brien’s goofiness as well as that ironic sense of light-heartedness that typical apocalyptic or dystopian films lack. Take those away, and it’s just another adventure film with pretty camera work.