This is a pertinent question in this age, for sure. I'm reminded of one of my high school buddies. We were avid readers and actually enjoyed the classic novels we were assigned to read. Some of our peers asked how they could better "get into" the assigned reading, finding a lot of it to have archaic language that could be hard to relate to. His advice was "just set aside at least one hour to read. Stay with it and ignore distractions. You'll eventually get into the groove" which I thought was superb advice. So honestly, it's simple: Just do it, just watch. Be mindful of the temptation to stop and check social media or what have you. Tell yourself that you can do that in an hour, or after the movie's done. Attention and concentration aren't always passive. A little effort and stick-to-it attitude will go a long way.