The length of David Helfgott's cigarette when playing "Flight of the Bumblebee" at Moby's.
During the Rach 3 performance David's hands are dripping with sweat, dry, then dripping with sweat again.
During the first music competition, we see one of the judges, Mr. Rosen, with his hand covering his face. The camera angle changes to the back of the room and his hand is now lower. The scene returns to view him from the side and his hand is on his face again.
The character shows all signs of schizophrenia; not bipolar disorder (formerly known as "manic-depressive disorder"), as is claimed in the film. The real David Helfgott likewise displays many symptoms of schizophrenia and none of bipolar disorder.
Aluminium roller shutters on the Helfgott family home.
The mezzuzah, a Jewish religious scroll attached to a home's door posts, on Ben Rosen's home is angled the wrong way; it should be angled toward the entrance of the home.