Early agreements from Netflix (NSDQ: NFLX) and Redbox to delay renting new titles until 28 days after they are first available for purchase in stores is already having positive results for Time (NYSE: TWX) Warner’s film segment, said CEO and chairman Jeff Bewkes. He said that Time Warner was able to take advantage of the 28-day window for big titles and Bewkes claims that releases for The Blind Side and Sherlock Holmes sold more briskly than they might have otherwise.  “Other studios that have taken advantage of the delay in rentals are seeing similar sales growth of DVDs, while other studios not using that window structure appear to be under-performing,” Bewkes said, though he did not offer specifics.