Quicktime Error opening random files using simple apple script

I'm getting the following error: "The file isn’t compatible with QuickTime Player."

When using this script:

tell application "Finder"
    
    set random_file to some file of entire contents of folder "Movies" of home
    open result
    
end tell

However, I am able to open the file from the finder manually and once I do the script works on just that file. The problem is I have thousands of files and don't want to open each one manually for the script to work again. Have not had this problem with the script in the past.