You might hate vertical video, but with Instagram and Snapchat mobile users in the hundreds of millions, there's no way to ignore it. Unfortunately, if you originally shot regular 16x9 horizontal video, making it smartphone-friendly in Adobe Premiere Pro CC can require a lot of work.
In an exclusive Sneak, Adobe showed Engadget a prototype feature called "Smooth Operator," a Sensei AI-powered cropping system that would help a lot. After shooting a regular video, you just need to select the type of device to output to (smartphone or tablet) and click a single button. The system then figures out which part of the image to focus on and automatically formats for that.