First option, make a film about the life of Goethe, artsy and misunderstood - boring.
Second option, make a historically inaccurate film to about the life of Goethe to provide light entertainment for all crowds - boring.
Why on earth do you give a film the Amadeus/Shakespeare in Love treatment if it's a dud after all.
The formula doesn't work to well anyways (I think because it's not adopted consequently enough) and especially in the later parts I'm not sure if director Stölzl secretly regretted it to make a pop film instead of an art film about the subject.
There's no good, serious, film about Germany's greatest writer at all, so why start with the fresh and new version?
I don't like the formula they put on these films anyways, radically fictionalized, strongly dramatized and historically highly inaccurate it has next to nothing in common with the real life of Goethe - it mixes his life with the ongoings in his debut novel Die Leiden des Jungen Werthers (which happens to be one of my favourite books) which is not a bad idea per se but in this case it just fails because of a lack of determination and a little to much ambition. This is more Hollywood than German productions are usually good at and you can easily see this.
Only Moritz Bleibtreu as Kestner shows his versatility which is why he's one of the best German actors working today. Alexander Fehling and Miriam Stein are promising in some scenes but overall, Goethe is not a big achievement artistically.