Iron Man proves its mettle at box office
Comic book adventure Iron Man proved its mettle at the North America box office and topped expectations, kicking off the summer movie season with estimated weekend ticket sales of $100.75 million US and marking a commercial rebound for its star, Robert Downey Jr.
As ``Iron Man'' smashed its way to an estimated $201 million in worldwide box office sales, Marvel Entertainment Inc. raised its profit forecast Monday for the year and promised to release ``Iron Man 2'' in 2010.