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: 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.
Ham and Cheese: Rickman's Sheriff is easily the best thing in the movie.
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.
Special Effects Failure: Twice, someone goes crashing through an alleged stained-glass window. Both times, it's painfully apparent that the windows are colored paper.
Unfortunate Implications: According to this movie, Celts were basically orcs. Apparently the filmmakers forgot that the millions of Celts still living in Ireland, Bretagne and Wales might take offense. Also Artistic License - History by pretending that they were a distinct culture in the late 12th century England.
They were a distinct culture, just as the Scots, Welsh, and Irish are today. The failure is in claiming there was a group of people known as "Celts," as opposed to one of the more specific groups.
Also forgotten is that, by the 13th century, none of said groups were known for wearing war paint (or for that matter, going into battle with only fur or bare-chested). Such cultural military bravado had been out of style for centuries in Western Europe (for mercenaries and professional soldiers, at the very least).