Babylon AD (the book is called Babylon Babies). I thought it was bad editing that made the end of the movie confusing. No. Turns out they took the actual ending of the book, toned it the fuck down and filmed it.
Not sure they could have filmed the part where the hyper-evolved babies take their comatose mother's consciousness, stuff it in an experimental space station and launch it towards the galaxy at 10% of light speed.