"A lot of times directors don't like kids, it's too hard. But with Robert (Rodriguez), he thinks opposite," Vega said. "He's a wonderful dad in person, but on set as well. He took over role, gave great advice, made sure we never felt like we were working, always having best time."
Rodriguez is the reason Vega was happy to make a grown up appearance in the upcoming "Spy Kids: All the Time in the World in 4D."
"I feel like you can make anything as difficult as you want to," Vega said. "You have to have a good attitude and that doesn't mean things won't go wrong sometimes, but for the most part we try to keep it a positive experience and all of the SK films have been super positive."
She's taken that positive attitude with her on all her projects, and in her life, outside the "Spy Kids" frame.
"When you're in this biz, whether a movie or something else, if you are out in the media, you're signed up to be a role model," Vega said. "It makes me so mad when others say they didn't sign up for this. You are, so why aren't you living to be the best person you can be? It's how my mom raised me."
"Spy Kids: All the Time in the World in 4D" opens Aug. 19.