If you are watching movies, videos on mobile phone and get bored of watching it in a small mobile screen. You can buy online 3D Magnifier glass which enlarges your mobile screen and you could easily watch all your videos on a large screen. It will be like you are watching it in a mini television.
You could find these accessories on many websites like flipkart, shopclues etc.
You could also buy mobile phone stand if you like to watch movies while lying down. You just put your mobile on the stand and give it a position so that you don’t have to held it in your hands. Just put the mobile on stand and watch the movies.