Directors Lilian Franck and Robert Cibis fail to plumb their subject's frustrations or any other insightful biographical details.
What are people saying?
What are critics saying?
Slant Magazine by Joseph Jon Lanthier
Stefan Knüpfer's subtle charisma feels more suited to a beefily human New Yorker article than a documentary film.
Los Angeles Times by Kenneth Turan
As Pianomania gradually reveals, Knüpfer is able to do this so well because he is as much of a crazed perfectionist as the pianists themselves, maybe even more so.
It has a pleasing smallness -- it's cinematic chamber music -- that almost makes you overlook its inability to really explain its subject.
The New York Times by Manohla Dargis
Although there's more romance in "Buck," a classic American survivor story in the triumphant individual vein, in Pianomania the very dry, very accomplished Mr. Knüpfer makes engaging company both because he keeps enviable company and because he's a full-on geek, though one possessed by pianos.
Christian Science Monitor by Peter Rainer
Pianomania is the thoroughly apt title for a thoroughly enjoyable documentary.