just tried the script:

Downloading data from
https://www.nitrc.org/frs/download.php/5853/kamitani.tgz?i_agree=1&download_now=1...
Downloaded 62119936 of 161003254 bytes (38.58%, 15.8min remaining)
...done. (597 seconds, 9 min)
extracting data from
/Users/alex/work/src/nilearn/nilearn_data/kamitani/kamitani.tgz...
Error uncompressing file: CRC check failed 0x4928241c != 0x2d831715L
An error occured, fetching aborted. Please see the full log above.

can anybody reproduce?