The Hulk and Gammasphere
BuzzSkyline writes "The Hulk may be animated, but the Gammasphere that turns Bruce Banner's hissy fits into raging rampages is real. It's based on a gamma ray detector used at the Berkeley and Argonne National Labs. The actual machine doesn't make monsters, but it helps in studies of nuclear monstrosities. The American Institute of Physics reports on Gammasphere and its role in the movie at Inside Science News Service."
That's true, but you have to give the Holywood guys some carma for showing a technical stuff instead of some dopey stereotype.
Btw., have you recognized the animals in the Saruman's evil army of Orcs in "Two Towers"? These were wooly mamoths (instead of Oliphants in the book) and their actual temporaries, giant hyenas (instead of Wargs, which the orcs were riding in the book). Jackson let in CG-generated real (but scary) recently extinct giant animals. He did not have to do this - and it was a nifty improvement!
These giant hyenas were probably worse than the giant saber-toothed tigers and it is now believed that until their extinction, they effectively held off the population of America through Bering straight land bridge. And now you can see them in one picture with Frodo!
I doubt that we will ever figure out - and I suspect that even if we did figure out we couldn't do much about it