SATURDAY AM UPDATE: STXFilms's The Upside is enjoying a stellar debut, bringing in an estimated $6.95 million on Friday with weekend expectations now reaching as high as $19-20 million. The film received an "A" CinemaScore. As a result we're looking at a new #1 this weekend as The Upside will easily push Aquaman into second after the film pulled in an estimated $4.56 million on Friday, heading toward a $15-16 million weekend. Sony's release of A Dog's Way Home is looking at a...