Question: Why is Daniel so supportive of his son being "in love"? It's not entirely unheard of for future couples to meet during childhood, but Daniel actually refers to the girl as the love of his son's life; something that would be dubious to most parents when their child is not even a teenager.
Question: When Keira Knightley finds out that Andrew Lincoln loves her on the video, he gets really awkward and says something along the lines of 'I've got to go somewhere for lunch.' Then he pauses and says, 'It's a self-preservation thing' and walks out. When he says that does he mean the eating (ie his lunch) or the video (so he at least can look at her sometimes even if he can't have her)?