edstroh,
Do these movies have clouds under them? If so, that means that the movies are ones you have purchased but are not downloaded to your Mac. They are stored in iCloud. If you do not wish to see these movies that are stored in iCloud, you can opt to only view downloaded movies. With iTunes open on your Mac, click View in the upper left corner of your screen. Then select "Only Downloaded Movies".
This will hide the movies stored in iCloud until you device to go back and change the view back to "All Movies."
This article will provide you with a list of the different icons used in iTunes including the iCloud icon:
Symbols used in iTunes on Mac - Apple Support
Regards.