People.com Celebrity Scarlett Johansson & Ryan Reynolds: Most Shocking Split of Year? Or was it Courteney & David? Eva & Tony? Or another couple? Take the PEOPLE poll By Sara Hammel Published on December 15, 2010 01:00 PM Share Tweet Pin Email We never saw them coming. The year is ending with an explosion of Hollywood breakups, adding to a list of other seemingly happy celebrity unions that went kaput in 2010. Ryan Reynolds and Scarlett Johansson‘s split is just the latest. Sweet young couple Zac Efron and Vanessa Hudgens couldn’t make it work. Nor could Eva Longoria live up to her fairytale wedding to Tony Parker. Courteney Cox seemed to find a soulmate in the affable, goofy David Arquette, but they separated after 11 years of marriage. And nobody could forget Sandra Bullock‘s divorce from Jesse James.