The name of the pilot in the movie The Great Waldo Pepper was Ernst Kessler.
In real life his name was Ernst Udet Germany's # 2 ace. The black and yellow
fokker was not anything he flew, but some of the markings were his.
The LOLA on the side ( really just LO! ) and the Du doch nicht !! on the tail.
Just a little info. for anyone that want to know.
Here is a link to the D-VII he flew.

http://www.wwi-models.org/IM/German/udet_d7.html