You have instant caller ID on your home phone, but in a movie it takes up to 60 seconds for the police to trace a call as the hero struggles to keep the bad guy on the line. If I went to a movie and it was over in 20 minutes because Liam Neeson traced the bad guys to the local Denny's, I'd be pretty pissed off. And then I'd go to Denny's for a Grand Slam Breakfast Platter, and get even more pissed off, because Denny's ISN'T THAT GOOD.
And why should they? I'm also happy that movies don't feature necessary pleasant small talk at the beginning of a phone call, or yawning, or talking over each other, or trailing off with "uh, I forgot what I was going to say." It's unrealistic people are even talking on the phone to begin with, if they wanted to be real they'd just be texting each other emojis of smiling poops.
With the wind rushing past your ears at over 100 miles per hour, there's no way you'd actually be able to hear another person while skydiving. Which would ruin awesome scenes like Keanu and Swayze fighting over a single parachute and daring each other to pull the rip cord. Plunging toward imminent death is the coolest time for the good guy and bad guy to be screaming in each other's faces. Plus if people can't talk during a freefall, then they sure as hell can't have a guitar solo duel, and then what's even the POINT?!