According to Canal+, the download feature is designed to enable users of the service to view content anywhere at any time, irrespective of the availability of internet bandwidth.
Once downloaded, titles will be available for 30 days for users to watch.
Canal+ has also added a Playlist function, allowing users to find titles they want to watch more easily.
According to the pay TV outfit, all new movies will now be available in HD quality, provided an HD version is available, four months after their theatrical release.
The download-to-own function, Achat, will enable viewers to store a digital copy of a film on their computer or in the cloud, enabling them to build up their own digital library of content.
Canal+ has also redesigned its site to give easier access to its content, bringing new content to the fore and revising the way it categorises content. The company says that the menu now gives more rapid access to different thematic categories.