Moneywatch: Walmart digital label concerns and a re-release at the box office

Walmart is promising not to engage in dynamic pricing with its new in-store digital price labels.  A seven year old Marvel flick returned to 'snap back' to the top of the weekend box office.  And Dairy Queen is launching its first Halloween themed menu items today.  Wall Street closed out last week with all green arrows, boosted by tech gains and falling oil prices.   The Dow climbed 478 points. The Nasdaq rose 129 points. The S and P 500 gained 39 points.  CBS News' Carissa Lawson has the latest business news headlines from New York.