A quartet of new films failed to spark much interest at the North American box office this weekend as Dreamworks Animation's Shrek Forever After stayed in the number one spot by a comfortable margin. Of the four new releases, Universal's raunchy rock comedy Get Him to the Greek and Lionsgate's Killers fared the best, while Fox's Marmaduke and Warner's Splice both bombed. Weekend business was not only down a hefty percentage from last weekend's holiday sales, but it was also down a troubling 26% from last year at this time as the general public continues to just say no to a weak lineup of summer offerings.