Disney's animated film "Big Hero 6" about a flying robot rocks the box office top spot collecting $56.2 million in U.S. and Canadian ticket sales.<br/> <br />That was enough to rocket past Christopher Nolan's space adventure "Interstellar," starring Matthew McConaughey, which collected $52.2 million over the last 5 days.<br/> <br />Third in this weekend's mix is "Gone Girl" starring Ben Affleck with $6.1 million in ticket sales, according to studio estimates.
