So one other thing that Pixar puts into their flicks actually isn't in the film itself but the credits.
From
Toy Story to
Up, somewhere near the end of he credits, they will list the Production Babies, so if you don't stay for/get to watch the credits you might miss these. (Especially since they stopped doing bloopers which is kind of a bummer.) These are the children born to anyone involved with a particular project. I don't have the number from
Up, yet, but from
Toy Story to
WALL●E 432 new people were brought into the world(!). Granted, it might be less than that if people works on multiple films and their baby appeared on several lists, but still...
Starting with a modest 23 for
Toy Story:
A Bug's Life had 34 (and who're the parents that named their kid Shashank?):
Toy Story 2 only had 29, but it had a shorter development since most of the characters already existed:
We jump 20 to 49 for
Monsters, Inc.:
We dip to only 43 for
Finding Nemo:
But jump to 57 for
The Incredibles:
But during
Cars, Pixar got biz-zay! 76 children on the list, and I'm pretty sure the names listed at the bottom with the ampersands between are the sets of twins:
A mere 60 for
Ratatouille :
And a measly 61 for
WALL●E :
Like I said, I don't have the one from Up yet, but I imagine it's gotta be in the 50-60 range, too.