Extremely rare autograph of Theo Schwartz from Back to the Future 2. she played the hoverboard girl and this is the only one on eBay. This rare 8x10 photograph from the famous movie "Back to the Future 2" features the iconic Hoverboard Girl and bears the genuine signature of Theo Schwartz. The authenticity of the autograph has been thoroughly verified by James Spence Authentication (JSA). This original photograph is a must-have for any collector of entertainment memorabilia and would make a great addition to your collection.