Okay, I installed psutil and here's what happened:
I tried the IMDB Movie script again, and the same window popped up as if it wanted me to choose a file or image.
I hit 'cancel', but instead of getting the usual error message with options to continue application, restart application, etc., this time it appeared to finally be downloading information.
I waited for 20-30 seconds, it finished, and the script had downloaded an image for the selected movie and a few other bits of information like the genre, studio, IMDB rating, and a couple of other things. However, no cast, tags, summary, etc.
I opened the configurator, and pretty much every box had a checkmark, so I made one change, which was to uncheck the "download posters" box.
I clicked 'apply', closed the configurator and tried the IMDB Movie script again.
The "open" window popped up as before, so I hit 'cancel'. This time, as it was doing before I installed psutil, the "an error occured in the application" box popped up with the options to continue, restart, or close.
I tried it a few more times on a few different movies, and I get that same error message each time.