that is a german film about Liselotte von der Pfalz (she was the second wife of Louis' brother Philippe). That film has been released in 1966 and it is 99 minutes long.
Liselotte von der Pfalz was a german princess, who had to marry Louis' brother Philippe. All her life she wrote letters to her german relatives and is very famous for them.
That film shows the story of her marriage. The story told in the film is not very historicaly correct, but that film is very charming and full of naive and beautiful moments.
Liselotte von der Pfalz - Heidelinde Weis
Philippe - Harald Leipnitz
Louis XIV - Hans Caninenberg