Tieler-I have to answer your post.
I have seen a set of vidcaps of this scene (it might have been on the Mousepad, I can't remember), at least 10-15 vidcaps, maybe even more. In the scene, two men are handling and touching her ankle and foot, I believe to examine the tattoo on her big toe....there is only one cap in the entire set where she is laughing, the rest she's as calm as a cucumber....there is not even a "lead-up" to the laughter, even though the caps seem to be in practically split second sequence. This leads me to believe that one of the hosts cracked a joke and she burst out laughing-perhaps I'm wrong, but I didn't make this conclusion on a whim, I was hoping it WAS a tickling moment, but I don't think it was, though I do love this picture and think it's great that People magazine chose to give it this caption, just as I'm happy with all the other information thus collected about gorgeous Charlize (I should love to have an equal abundance of info about, let's say, Marilyn Monroe or Raquel Welch circa 1973! Or about, say, Christine Aguilera or Jessica Alba, etc etc....) I think that picture with Keanu may be closer to a real tickling-of-CharlizeTheron photo, I'm not sure, it just might be but Keanu's words tell the real story and if he has said in a published interview that he tickled her during a scene but it got cut out (it must have been really good for him to have remembered it and talked about it in his promotional interviews!), then I believe him and that's good enough for me to think, everytime I see her, "that really pretty girl is ticklish"! (For some reason, I always think of her and Catherine Zeta Jones as ticklish counterparts, ticklish Hollywood royalty....they're certainly both really luscious ladies, unquestionably!)
That gives me an idea for a poll! (which I never go into)...I'm headed there now!