Here is the cinematic editor for Call of Warhammer for XP, Vista, and Windows 7.
Download:
LINK
Installation:
1. Download the file.
2. Open "Cinematic_Editor.zip" and open the folder pertaining to your Operating System (i.e. if you have Windows XP, open the "XP and Vista" folder.
3. Extract the contents of the folder to your "SEGA/Medieval II Total War" folder.
Tutorials:
Tutorials on how to use the cinematic editor can be found here.