I am made on a square of 44,
preceded by purple, German and Germans
then they sold meals for fifty pfennig
What am I?
Update: This one turns out to be hard. As the tag says, the answer is a movie. Also, do not hesitate to Google some of the terms or synonyms of them. I tried some terms that are not too hard to guess and then it will be in the first few hits.
Also, the title and the three lines contain a total of six hints.