One of the leica wikis should be able to give you more info, but as far as i recall, the only "leitz" cine lenses that can be mounted on an mft are the 10mm 1,8 cinegon (made by schneider) and the zooms (6-66), also made by schneider. These all have the leica M-mount and cover the super8 format. On the mft the 10mm gives a sharp, but circular image.
The dygon is not a separate lens, but a focal length converter similar in principle to the zeiss "lenses" that used to be available for their cental shutter slrs, the similar devices for the voigtländer slrs and the schneider&rodenstock supplementary lenses for the retina. The dygon fits via a snap-on mount. Fine for a collector of the increasingly rare leica double8 cinecams, not for anyone else.