"People think you know beforehand when you win an Oscar - I can assure you you don't"

In this quote, Judi Dench is attending to the common mistaken belief that winning an Oscar is an established result. She is stating that people often presume that the winners of the prestigious award know their success before it is revealed. However, Dench refutes this belief by ensuring that this is not the case. She indicates that the outcome of winning an Oscar is unforeseeable which even the candidates are not familiar with the outcomes ahead of time. Dench's statement highlights the aspect of surprise and uncertainty that features being chosen for and possibly winning an Oscar.