Cowabungaa said:
So how did it jump out of the genre? It's still an adventure movie isn't it? It's not like the aliens suddenly made it sci-fi or anything. I mean Bond made a rather radical (and lame) turn lately, but was Indy 4 also such a radical turn?
Because Indy is Pulp Action. You'd get similar problems with having Global Corporations, The Mafia, Robots or Pop Stars.
Dinosaurs? Fine. Nazi Dinosaurs? Double Fine. American Dinosaurs? Nope. Unless they were comic relief.
Because
THE ALLIES ARE THE GOOD GUYS. DINOSAURS ARE MONSTERS. CUTE MONSTERS CAN BE GOOD GUYS.
Like Omechron said above, it'd be like Vampires in Alien vs. Predator. Or Robots in Fantasy.
You
can break those rules.
(Bubo in
Clash of the Titans), but you have to be extra-careful to re-assert the rules or else suspension of disbelief breaks.
That's not a
robotic bird, that's
jewelery brought to life.
Big difference. (Semantically, hardly any. Genre-wise, huge)
See http://tvtropes.org/pmwiki/pmwiki.php/Main/TwoFistedTales