It seems the link to download the demo data is not working in https://docs.cognite.com/cdf/data_modeling/upload_raw_dm.
Once clicked the “the demo data” link, got an error message “This site can’t be reached”. Seems the dropbox link is broken. https://www.dropbox.com/s/o5o9eaewb9j57kt/FDM_Movie_data.zip?dl=1
Could you help have a check?