These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Draco in Leather Pants / Evil Is Sexy: The Sheriff of Nottingham gets this treatment, with many female fans finding him more attractive than the hero. It probably helps that Alan Rickman's performance is played to such hammy perfection that he steals pretty much every scene he appears in.
Never Live It Down: Kevin Costner still gets ribbed on for playing a British hero without a proper British accent. Sometimes affectionately, sometimes not. Never mind the fact that a modern British accent is no more accurate than an American accent.
Newer Than They Think: Rumor has it that the reason this film borrows several elements from Robin of Sherwood (including the Moorish Merry Man and a dose of Celtic mysticism) is that the writer hadn't done enough research to realize that Robin of Sherwood had invented those bits, and thought they were standard parts of the legend.