With weeks off during the winter holidays, watching movies is often a great way to spend some time together as a family. Blog about your favorite family movies and offer suggestions.
If your audience is primarily business folks, perhaps you can write about movies that have great life and business lessons. Also don't forget documentaries related to your topic.
Affiliate opportunities: Suggest a movie or a list of movies. Maybe even recommend a subscription to Netflix if you have had good experiences with it.