I've seen a few posts on APUG about Brazilian film prices, mostly that they are horrifically high. There are also import duties on it, so even if you buy from the US and have it posted to you, it will still end up expensive. Best option is probably to bring it with you, cheaper again if you make a NYC stopover and visit B&H to pick some up on the way.

And of course, tourists generally shoot digital so you can ignore Mustafa.