This is actually an ongoing process starting with the Vietnam War and the war on terror.
I'm only barely old enough to remember how, in the 90's in Europe, everything that came from the US was cool and everything local was lame and embarassing. People older than me probably remember it being even more so before.
Nowadays that's only true for movies. I genuinely think that the US's imperialistic behavior has spoiled the goodwill earned from WWII, in combination with the internet shattering the monoculture that the US used to dominate.