Technological advances ruin old movies

Watching old movies is difficult today because the basic plots get ruined when you think about what would happen today. You have to put yourself into the time period of the movie.

Case in point, I was just watching Sherlock Holmes in Washington starring Basil Rathbone from 1942. A secret document is being transported, by surreptitious hand no less, across the Atlantic. Spies are trying to intercept it and Holmes joins in the chase.

Even Holmes discusses how microfilm is changing the world. He remarks that a carrier pigeon can carry microfilm to the equivalent of 18,000 letters. 

I can't help but think that nowadays this would just go by encrypted email or something. 

I'm also reminded of the 1985 Schwarzenegger movie called Commando in which most of theories revolves around Arnold beating the clock on an 11-hour plane ride before the bad guy on the plane can make a phone call. A phone call. Of course, with modern phones he could literally been connected the entire time (except take off and landing of course).

What will we be remarking about 30-70 years from now? Silly iPhones? Actually typing a text?