When I was a kid it was The Lion King. I still to this day can sit and watch that movie over and over and never get bored of it at all. It was just a few weeks ago I watched it again with my children and they also loved it.
Since growing up though my favourite movie now would have to be Fifty Shades of Grey. I am still yet to watch the newest one, Fifty Shades Darker but I understand it's a really great movie and I am looking forward to watching it. I love the story line and love how it gets you more and more excited for the next movie.