A lot of things stand out from the Fifty Shades of Grey movie [1], but one detail in particular annoyed lots of people on Twitter: Anastasia's flip phone. Yes, flip phone.

"Helloooo, it's 2015," they said.

The most erotic thing about 50 Shades of Grey is Anastasia's flip phone pic.twitter.com/TBrU6dcjcj [2]

— (@TheUniverse) February 13, 2015 [3]

I saw 50 Shades last night and honestly I'm most confused about why someone in 2015 has a flip phone.

— Kevin Roose (@kevinroose) February 17, 2015 [4]

Saw 50 shades of Gray. So unrealistic, she had a flip phone, come on a flip phone.

— Kelly Taylor (@TicTaylor) February 18, 2015 [5]

But the biggest problem with the flip phone? When Christian Grey texts with Anastasia from his iPhone, their texts show up as blue bubbles. And as we all know, blue bubbles only appear when both parties are connected to iMessage [6].

50 shades of grey was so unrealistic, we all know a flip phone and iPhone conversation would have green text messages not blue #disappointed [7]

— Andrew (@Aeezus__) February 15, 2015 [8]

Who does the director think she's fooling?