Avengers: Infinity War. Again, we have a copy, but I guess this is as good a place as any to rant about something that bothers me:
YTF does Tony Stark have a flip-phone? In the Battle of New York II, before he hears the doomsday donut, he's about to call Steve, and what does he pull out of his track-suit, but a flip-phone? It's just so anachronistic, when we've seen so many smart-phones with holographic displays that sense his movements, so he can grab, swipe, and enlarge right in front of everyone.
He takes off his smart glasses to cover himself in liquid Nano he wears in, or on his chest. (They don't say whether or not this is supposed to be the MCU version of his Bleeding Edge, or Extremis Armor) When Pepper calls back, as he's rapidly leaving the Reception Area (Like he did carrying a cruise missile out of the Battle of New York Part I) we can see that he's connected through the suit, no glasses, no handheld, not even a smart-watch, he can order an upgrade for Iron Spider to be delivered from HQ with a word, but to call Captain America, Banner picks up a slightly scuffed fliphone out of the rubble, still open to Contacts. YOU CAN'T EVEN BUY ONE OF THOSE ANY MORE! Can you?
The interstellar Pager Fury drops with a disintegrating "Mother f..." at the end launched a thousand fan theories, but for some reason, am I the only one that noticed how fucking absurd it was for Tony Stark to pull a fliphone with a 2" monochorome display out of his pocket in the Sanctum Sanctorum? Really?
It's driving me nuts, but it's not like it takes much for me, nowadays. More of a putt, really.