The answer is - Dublin
The American film made at the very start of the sound film era, "All Quiet on the Western Front" (1930), on the grimness of warfare in WWI was banned in Germany (after a brief run in 1930) not unexpectedly, but also where?
"Uncle Boonmee Who Can Recall His Past Lives", which won the Palme D'Or at the Cannes Film Festival in 2010, was made where?