Ioreth

Question: After Alex finds his father and is driving back home, we see a scene from the hospital, where Lara (or another nurse?) is talking to Alex's mother and telling her that the Berlin Wall collapsed, and that Germany is united. But later, Alex's mother acts like she's unaware of this, and Alex himself also states that she never knew the truth. Why?

Answer: Lara did indeed tell Alex's mother the truth. Realizing how much her son had done for her, she left him with the illusion that she never found out. The audience knows better.

Ioreth