“We live in a bully culture right now. We have bullies everywhere — you don’t need me to point the finger at who, but there are all these bullies. In this movie, Biff is a bully. Time is a bully. For me personally, Parkinson’s is a bully. And it’s all about how you stand up to them and the resolve that you take into the fight with them. It’s about your resilience and your courage. I think there’s a lot to that right now, I think a lot of people are responding to the movie because it strikes chords they wouldn’t otherwise recognise.” - Michael J. Fox
'Back To The Future At 40: Michael J Fox And Christopher Lloyd On Why It Still Resonates' https://www.empireonline.com/movies/news/back-to-the-future-40-michael-j-fox-christopher-lloyd-interview/