Gonzo produced a 13-episode Hellsing TV anime series in 2001 (which Geneon also released in the U.S starting in 2002), but the plot of the TV anime differed in some important regards from Hirano's manga. The new OVA, produced by Satelight, hews very closely to the plot of the first volume of the manga series, and has been eagerly awaited by U.S. anime fans...
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