John Liver posted:

I didn't care for the movie, but there's a pretty good one in Pirates of the Caribbean: Dead Man's Chest (the second movie).

When Will is going through his montage as he follows the recent movements of Jack Sparrow, the last person he talks to is a Jamaican sailor who tells him about an island where he traded for "delicious spiced pork." You might not pay attention to that line, but it's only later that Will discovers the islanders are cannibals. So... sailors have been trading meat on that island for quite a while now...