Marvel Studios' "Doctor Strange" is expected to draw a massive audience this weekend, providing some much needed medicine for Hollywood during a bruising fall box office season. Analysts expect the visually stylish Benedict Cumberbatch comic book movie to collect $65 million to $75 million in ticket sales from the United States and Canada through Sunday. Some more optimistic industry observers predict the film, about a former neurosurgeon who harnesses mystical powers, may reach $80 million in domestic grosses... "Doctor Strange is a C-level Marvel character, and the fact that you can pull an $80-million debut is ludicrous when you think...