Movies filmed in Rhine, Germany

There are 6 movies that were filmed in Rhine, Germany.
The Wonderful World of the Brothers Grimm
(1962)
Las garras de Lorelei
(1973)
Drei Mann in einem Boot
(1961)
In the Valley of the Rhine
(1953)
Eine große Liebe
(1949)
Ein Sommertagstraum
(1978)