Background weather behind the grandfather at the end.
After Heidi gives the milk bottle to Clara, it repeatedly disappears and reappears in Clara's hands in subsequent shots.
Herr Sesemann gives Dete a letter for the grandfather, sealed with red sealing wax. When the grandfather opens the letter, it is in a modern envelope with no sealing wax.
Grandmother tells Heidi that her old teeth can no longer bite the hard bread rolls, however it is quite obvious that she has perfect teeth.
The story appears to take place in the 1800's but when Grandfather is getting the quilt out of his cupboard he find a colour photo of his family.