UPDATED: ' Cowboys ' grosses $36.4 million, while ' Smurfs ' earns $35.6 million. I'm sure Favreau is re relieved to hear this news. A race that riveted Hollywood into the early hours of Monday, Cowboy & Aliens has pulled ahead of dark horse The Smurfs to win the weekend box office race. On Sunday, Sony put Smurfs’ projected weekend at gross at $36.2 million—identical to the estimated gross of DreamWorks and Universal’s Cowboys. Both films dropped roughly 23% on Sunday, making the race impossible to call Sunday evening. Rival studios showed both films grossing roughly $35.6 million. But by midday Monday, Universal put Cowboys' opening at $36.4 million, compared to $35.6 million for Smurfs. Box office insiders said there was a problem with reporting for some AMC theaters, explaining why Cowboys' number can in higher than expected. While that’s a win for Jon Favreau’s Cowboys, Smurfs is still the big victor of the weekend. Heading into the