Tejano movie director Robert Rodríguez is gearing up to work on sequels to "Sin City" and "Machete." 

The San Antonio native says the script for “Sin City 2” is being fine-tuned, while he works on not one but two sequels to “Machete,” which will bring the blade-slinging star into space.

"Even if we don't get to three, I'm at least making the trailer for three because it's so good,” Rodríguez said at the Comic Con International event on Thursday, where thousands of comic book enthusiastic meet annually in San Diego, Calif.

“I would put it even before part two," Rodriguez said. "Machete goes into space! It's like 'Moonraker.'"

He also discussed his latest film, "Spy Kids 4," which is set to release in "4-D" next month.

Playing in both 2-D and 3-D, the fourth dimension is "smell-o-vision." Rodríguez explained that moviegoers will receive a card when they come into the theater that has eight numbers on it that hold scents that correspond with the film.

"When a number flashes on screen, you scratch that number and you smell it, and whatever they're smelling on screen, you smell in the audience," he said. "There's sweet smells and bad smells — because we have a baby and we have a dog — and it's really fun."

Rodríguez also announced three new partnerships: He plans to develop games and movies with the "Heavy Metal" franchise, create a museum and other media around the fantasy artwork of Frank Frazetta and inspire computer hardware for filmmaking with the tech company AMD.

He says a full plate makes him more productive: "You get more done when you're busy. It almost helps you focus on something more when you don't have too much time to over think  it."

Based on reporting by the Associated Press.