Corrected entry: The shots of Truman's early life show him as a fetus on day 1, and then toddling on a beach on day 125. Even if day 1 had been the day of his birth, which, going by the development of the fetus, it isn't, he would only have been about 4 months old in the latter shot. Babies generally don't start walking until around the age of 8 to 12 months.
JC Fernandez
10th Mar 2011
Correction: There are no captions on the mentioned scenes, and no such captions reading Day 1 or Day 125 exist in the film.
JC Fernandez