I sat on a plane with a husband and wife who worked for air traffic control. They said that regular electronics do not affect the plane, but every time a smart phone or what ever pings for an update, that interrupts ground communications to the plane 100% of the time so if your phone is asking for txt messages or emails, that interrupts information being sent to the plane as the plane is using the same bands that we all do. I was really surprised at this. I later confirmed it with another air traffic control friend.
As to Alec Baldwin, well, he certainly is a SS to keep wanting to play the game when they asked him to turn his device off. He's really lucky he's not in jail. Stopping a flight causes serious problems with scheduling etc.