An American in Paris: The Musical
Starring Robert Fairchild, Leanne Cope, Haydn Oakley, Zoe Rainey, David Seadon-Young, Jane Asher, Julian Forsyth, Ashley Andrews, Julia Nagle
It's a music and romance movie, and has a rating of 7.9 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.