I'm not entirely sure as there could be many interpretations of an 'aldi christmas story'. It might be about the Christmas experiences in Aldi stores, like how they decorate for the holidays, the special Christmas products they sell, or perhaps some heartwarming customer stories during the Christmas season at Aldi.
Yes. There is the original written version by Charles Dickens which has a very specific language and narrative style. Then there are film adaptations which often have to make changes for the visual medium. Some might cut certain parts, add new scenes for drama, or change the pacing, making them different versions in their own right.
No. 'A Christmas Carol' has been adapted by many people over the years, but Bob Clark is not among those associated with it. His work was mainly in 'A Christmas Story', which has its own unique charm and story that is distinct from 'A Christmas Carol'.