Lee Hoedl put together a very good video "All Along The Route" about the 2014 Marathon. At the 11:30 mark it will start the segment leaving Hollywood Studios and give you an idea of where the runners go so you can plan your viewing. http://www.youtube.com/watch?v=BLoCzBL7Shw#t=715
Lee Hoedl has been putting up videos of marathon weekend since like 2008,those videos are a huge part of why I started running Disney races.