Movies such as 'I, Tonya' use CGI to solve logistical problems rather than create monsters or explosions.
Even though it's an incredibly complex and expensive craft, CGI is saving modern film productions more money than ever by facilitating simple fixes to logistical production issues that could wind up proving costly. In fact, more often than not, as this new video from Polyglon demonstrates, visual effects now appear in movies where you'd least expect to find them.
For example, even though nothing spectacular happens in the marina scene in Wolf of Wall Street, it was shot entirely on a production stage with the background composited in—simply because it was cheaper to do so. By contrast, the production team on Interstellar, which takes place partially in another dimension of the universe, built an enormous set on which they used mostly practical effects, rather than CGI, to a mind-boggling degree.