Picture 3This year the 35th Annual Sci-Fi Film Festival, Boston’s premiere event for everything alien and fantasy-oriented, is bigger than ever. Expanding to a full 10 days of films from all over the world, this film festival has gone a long way from the 24-hour film marathon it was at its creation. But, this 24-hour movie marathon, or ‘Thon as it’s called, is now a tradition during the festival starting on noon of the Sunday of President’s Day Holiday. The Sci-Fi Film Festival has everything from classics, cartoons, shlockers, and premieres- and more than likely, everything in between.