"The questions that we ask in Iron Man are what [is] the best thing to use?" said Favreau on the use of practical effects vs. CGI (Computer Generated Imagery) effects. The director of Made, Zathura and Elf has worked with both types of effects. Zathura primarily used traditional practical effects with some background CGI effects. With Elf he used stop motion and CGI effects. In Iron Man, Favreau looks to use CGI in a subtle way that does not take you out of the movie. The director is quick to point out that by exclusively using CGI filmmakers "run the risk of making it look like you are watching somebody else play a video game." Favreau wants to keep the audience focused on the story and not become disengaged or distracted by the effects.
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Iron Man, starring Robert Downey Jr. will arrive in theaters on May 2nd, 2008.