Remove the string or an object from this video so it look like floating

This is a short film clip where a magician is floating a hat by his mind power. You need to remove the string/ thread from the video so it look like the hat is really floating on air.

https://drive.google.com/file/d/1uPEYv1ESIOUgaXNFaYFvaIZa3Xlb6ekq/view?usp=sharing

if you have any question please ask.
In this google drive file the quality of the video may not be so good. High quality video file will be given to whom will get the project.