David Koepp is the man behind the script of Indiana Jones and the Kingdom of the Crystal Skull.

And as fans look forward to the film, Koepp just hopes he didn't mess up the franchise.

"I hope it's along the lines of the first one," he said. "It's certainly not as dark as the second one and it's certainly not as humor driven as the third one. Hopefully it will have its own place [but] it's closest to ['Raiders']."

In the end has the movie met the writer's lofty goal?

"I've seen some footage and it's really thrilling," Koepp said. "When you first see Harrison Ford back in Indy garb â€" it's just really cool."