Move All Files in a Folder to Subfolders (Handy for Radarr Movies)

Files2Folders.ps1

$path = "V:\_Movies" #Path to scan

#Grab all files + folders in that path
$childItems = Get-ChildItem -Path $path -Force

#Loop through the child items
foreach($item in $childItems)
{
    #filter out directories
    if($item.PSIsContainer -eq $false)
    {
        $item.name
        $folderName = $item.name.Substring(0,$item.name.length - $item.Extension.Length)
        #Make a folder with the same name as the current file
        New-Item -Path "$path\$folderName" -ItemType Directory -ErrorAction Ignore
        #Move the file into the folder
        Move-Item -LiteralPath $item.FullName -Destination "$path\$folderName\$item"
    }
}

As long as subtitle files have the exact same name as the movie file (assuming that what you're using this for), it should be moved into the same directory.