Simple answer: no. The video frame is wider than it is tall and a vertical picture is taller than it is wide. It's simple geometry: the shapes just don't fit.

Not so simple answer: well, there are other things you can do. You could create a video that is 'vertical' format by setting the project properties to something like 480 wide by 654 high. You can render and play back files this shape if you wish. However, you aren't going to find many televisions or computer monitors that are this shape so even if the video file doesn't have the black bars on the sides then the screen will still have them while playing the video file. That's just the way it works.

You could fill the background with some other image so that people will see that on the sides instead of the black bars.

You could zoom in on the picture so it fills the screen (which you've already done) and then pan from the top to the bottom. This way the whole picture will be seen, but only part at a time.

Another alternative, though probably not a useful one, is to distort the picture by stretching it side to side so that everyone ends up looking very very short and very very fat.