Nemo says the angel missed him and that is why he can "remember" the future, but he has the philtrum (depression between nose and upper lip) that only the angel's touch would have given him.
At 01:34:37, when Nemo and Anna approach each other at the station, his jacket is half striped on his right shoulder. However, at one moment after the cut, his jacket is suddenly back on his shoulder.
When Nemo drowns in his car, it would actually have been rather easy to escape, because once the car filled with water the pressure would have equalized, making opening the door no more difficult than usual.
After correctly stating that the left typing hand's home position is over A,S,D,F, the narrator then says that the right typing hand's home position is over H,J,K,L, but in reality it's over J,K,L and semicolon.
When Nemo's car leaves the road it is heading for the river a few feet from the bank, however, in the next shot it enters the water in the middle of the river, a considerable distance from the edge.
When Anna's moved with her father to Brooklyn, NY, and Nemo's mother has intercepted a letter she sent to him, the return address - which usually has some amount of 'genuine-ness' to it, in this case is far from reality. It would seem the return address was written by someone who didn't even attempt to simulate a real address for Anna, as it appears it's: ' Anna Vigo 139929 9th Ave. East, Brookland, NY, New York, USA, 43052.' ZIP codes in NYC all start with a '1,' with the second number being a '0,' '1,' or '2' (and, yes, 'Brooklyn' is misspelled as 'Brookland').
At about the midpoint, when Anna and Nemo start making love, a bit of tape covering her right nipple can be seen near the crook of her right arm.
It's unclear how old was Nemo when the telomerization procedure started. If it happened when he was young enough, then there should live many of his contemporaries or even people older than him because they were telomerized having regained their immortal youth. But in such case, Nemo's reminiscences should be of no interest to the reporter because it would be reminiscences identical to the ones of many living people.
In case if telomerization happened not so long ago, the situation with Nemo wouldn't so much differ from the world with no telomerization and there's no obvious reason to pay such huge attention to it and to Nemo's person.
(around 2:24:51) the young Nemo, having ran into the forest and thus did not follow his mother to Canada, blows a leaf which leads to the adult him and Anna being reunited again at the lighthouse. However, this scenario is impossible because he only meets and falls in love with Anna if he moves to Canada with his mother.