Perhaps you've heard of this unusual film. Richard Linklater is the guy who did "Dazed and Confused", and the "Before....Sunrise, Sunset and Midnight" films (the three "Before" films are separated by about 10 years with the same actors). This one was shot annually with the same cast over a period of 12 years, so we see them age before our eyes. No different actors playing different ages, no makeup effects.
I'm reminded of the British "Up" series, the documentary that films the same group of people every 7 years, since they were 7 years old.
I just got back from seeing this amazing film. I'm still thinking about it.
Do yourself a favor, and go see it. See it without reading much about it. See it without looking at photos; it pays not to be spoiled. You want to see how they all turn out. The little boy in the poster (who looks like he could be Scarlett Johansson's little brother) metamorphoses into a young man. Yet, it's not just about "boyhood". It's equally about parenthood, siblinghood, adulthood. Apparently, the original title was "12 Years", but was changed to prevent any confusion with "12 Years a Slave".
The audience actually applauded at the end. How often does that happen any more?