Flaw - Why was he explaining the pour to his wife?
Good movie, really enjoyed it.
One thing though. Why did it seem like he was explaining the significance of the concrete pour to his wife for the first time - as if he were telling someone who didn't really know what he did for a living? There would have been months of buildup to it, it was a huge point in his career and they were obviously a close family.
Someone could argue he was reiterating to her the importance of it for emphasis in the context of their current conversation, but it certainly didn't come across that way.