You appear for the site as the seeder, so it looks that you've done everything right, means got back the small .torrent file with the "Download" button from the description page and make find your BitComet the movie file when loading the .torrent file into BitComet.
Now what is "strange" is that the site doesn't register any upload by you, respectively download of the leeching peers.
That let assume that there is a connection issue of your Modem/Router (port forwarding / NAT), Firewall(s) in both computer and Modem/Router or the BitComet set-up.
Some possible solutions:
STOP and a little later START the torrent in BitComet Enable UPnP in both BitComet and the Modem/Router Enable a firewall exception for BitComet and the port it uses for incoming TCP connectionsRestart BitComet after each change., except the first item listed above.
This assumes that you are able to download a torrents files, but can't upload your own torrent's files. If you can't download either, let us know.