I loved Das doppelte Lottchen the German original absolutely to pieces when I was a child and I have also watched and greatly enjoyed the German film version multiple times the one from 1954 that had author Erich Kästner write the actual screen play ; it is much more authentic than the generally more well-known and famous The Parent Trap the original, starring Hayley Mills which took some rather huge and for me, unforgivable, liberties with the plot and while I do realise that many seem to I loved Das doppelte Lottchen the German original absolutely to pieces when I was a child and I have also watched and greatly enjoyed the German film version multiple times the one from 1954 that had author Erich Kästner write the actual screen play ; it is much more authentic than the generally more well-known and famous The Parent Trap the original, starring Hayley Mills which took some rather huge and for me, unforgivable, liberties with the plot and while I do realise that many seem to very much adore the latter movie, for me, it just veers too much and too far from the original to ever be fully enjoyable.
First of all, we were shocked to realize that we became super invested in these two characters getting back together.
I've already raided my piggy-bank to buy another of his books.