Salma Hayek has one major regret about her labour of love movie FRIDA - she developed a smoking habit on the set. The Mexican star quit smoking when she discovered she was pregnant, but still can't believe she became one of the people she used to detest. She says, "I used to have a terrible judgment of smokers. I was like, 'Why do they do this? It tastes bad, it's going to kill them, and it doesn't even get them high. It's the s**ttiest vice you could possible pick.' "Then I got hooked during Frida. I've tried to quit before. But this time I'm done with it. I've changed. I know I can do it."