There are too many things that annoy me with that.
First of all, like I always say, the PG rating is a joke. Madagascar 3 was a G film given a PG rating. I saw very little kids attending it, and there was nothing to shield their eyes from. Rango is definitely not a young kid's film and it has a PG rating, ditto Paranorman... Wreck it Ralph, I'd admit the mutant bugs from hero's duty were kinda unnerving. Heck, I'll even throw in Hotel Transylvania even though the entire premise is that monsters aren't half as scary and dangerous as humans.... Pirates was PG for having pretty rude humor. Still, it was a movie that deserved a PG rating. They blur the line between G and PG, and this stuff happens.
Secondly... WHAT?!?! Pirates was scary? I saw that same film, and it was a non-stop laugh fest. It didn't even have the muster of maturity to be creepy. Unless the kid was a Dodo bird, there's nothing to even bat an eye at. This child is one of the most mollycoddled kids in the country. I'd love to see her daughter's reaction to Watership Down or at least Judge Doom getting run over by a steamroller in Roger Rabbit. There's so much stuff from films when we were younger that actually was pretty unnerving and we managed to watch them on marathons and walk out okay. Scariest thing I ever saw in a movie was the Teddy Bear hallucination sequence in Akira, and I was 19 at the time. heck, I once saw a kid frightened of going to the movies itself, and stopped screaming and crying when MFS started.
And lastly... these *^%$ Mommy blogs. Parenting comes from deep inside you, and it's supposed to be an innate instinct. We don't need a bunch of mollycoddling, overprotective, "let's ruin everything because we somehow perfected everything this decade" parents telling everyone to do things to conform to their own child. Especially when every child is different. Don't pass judgement of a movie down because a 6 year old was frightened by something unspecific and rediculous.