Corrected entry: Fon is deaf/mute in the film, as shown in many scenes she appears in. However in some scenes she responds to words Joe says. Especially in the scene where she tries to tell him her name.
Corrected entry: In the beginning scenes in Prague, just after Joe shoots the witness, there are several shots of witness's papers. One of them shows witness's head shot and the name spelled "JINDOICH EIPERA" (with a stroke-through O and accented E) which is wrong. This kind of erroneous spelling happens when Central European texts are printed with a Western/US character set. The correct spelling should be "JINDRICH CIPERA" (with R and C with caron).