The relevance function helps these get sorted together for larger topics like this, but for more obscure information you need specificity. (gamehistory.org)
If the movie wants to tackle larger topics, by all means, tackle them. (awardscircuit.com)
I think that schools using 21st century social media networks is certainly a very large topic, something that a lot of people agree with as well as disagree with. (coolcatteacher.com)