If you watch musicals from the 1950s or teen comedies from the 1990s, you find a lot of movies with different titles but the themes and plotlines barely change; two friends competing for a girl in the former or some teen wants to improve another teen, who becomes really popular, in the latter.
It's not that Hollywood lacks imagination, we are naturally drawn toward a specific set of universal narratives within cultural products, says a new paper. We have evolved to like stories about Superman saving strangers or Brad Pitt fighting zombies.