San Diego Comic-Con International released special material of films "Sin City: A Dame to Kill For" and "Jurassic World" Saturday.

Director Robert Rodriguez is set to release "Sin City: A Dame to Kill For" next month and promises to ComicBook.com that the sequel is stronger than the 2005 first film in the Frank Miller franchise. Rodriquez credited strong actor performances and technology improvements will make the movie look better than ever.

"I knew the technology would be better and the 3D but I was actually surprised how good the 3D cameras were," Rodriguez said, who is using the new "Jim Cameron cameras" to capture the actors. "They didn't give us any trouble; they were like Ferraris."

"[The actors] were all fantastic but even better this time," he said. "The actors all came back and they had done even more green screen work, they saw how it translated to the film so they knew what they were doing and their performances across the board were just-I mean, dramatically different."

At Comic-Con, fans got to see exclusive footage as well as listen to a discussion of the film with Rodriguez, Miller and most of the main cast.

One of the most anticipated films at Comic-Con is the 2015 "Jurassic World," the fourth installment of the Jurassic Park series, even though the film won't be releasing any footage of the movie.

While Universal, the studio that owns the dinosaur films, doesn't have a scheduled panel for the San Diego conference, filmmakers did release an exclusive movie poster for Comic-Con for fans to take home. Director Colin Trevorrow tweeted the poster, created by artist Mark Englebert, and said that it was available at SDCC "to a resourceful few."

This small taste still had fans excited for the upcoming movie, which is slated to star Dallas Bryce Howard, Josh Brolin and Idris Elba.