Keira Knightley and Mark Ruffalo on Set Pictures Keira Knightley Shares a Kiss and a Song on Set July 23, 2012 Share This link Keira Knightley and Mark Ruffalo on Set Pictures Source: Bauer-Griffin Online 7 / 24 by Katie Henry 1 Save 0 Favorite 0 Keira Knightley plays the guitar on set. More Photos Previous 7 / 24 Next by Katie Henry 1 Keira Knightley plays the guitar on set. More Photos ‹ Back to Homepage Save 0 Favorite 0 Follow POPSUGAR Celebrity Pinterest Twitter Google + Instagram Featured Partners Sound of Music Live Without Much Life, Says PEOPLE's TV Critic Jessica Biel 'Definitely' Wants to Have Kids with Justin Timberlake The X Factor: A Bad Night for Demi Lovato and Her Team Jennifer Aniston and Justin Theroux Pick Out Their Tree More News at PEOPLE.com Kate Middleton Wears $35 Zara Statement Necklace at Mandela Premiere: Picture Dianna Agron to Return to Glee For 100th Episode After Missing Cory Monteith Tribute Lindsay Lohan Soaks Up Miami Sun in Skimpy Swimsuit: See the Picture Kate Middleton Recycles Slinky, Long-Sleeved Gown at Mandela Premiere With Prince William: Pictures More News at Us Weekly The Definitive And Final Proof That Beyonce Runs The World Britney And Justin Played Spin-The-Bottle With Ryan Gosling Sam Lutfi Tweets Alleged Old, Distressed Texts From Britney Spears Casey Affleck Has No Idea Why You Care About His Brother As Batman More News at Huffington Post popsugar live! NOW Watch POPSUGAR LIVE! Now NOW Watch POPSUGAR LIVE! Now Sponsored Links Subscribe to POPSUGAR Subscribe now to get instantly addictive email delivered to your inbox! Daily Sales & Arrivals Celebrity & Entertainment Featured Shops Fitness Fashion & Beauty Living Must Have ShopStyle Search Top BrandsKiehl'sAudrey BrookeRED ValentinoVilaManolo BlahnikMiu MiuclarisonicGUESS Top Searchessperry top siderzappos shoesmarc jacobs sandaldesigner dressestiffany and comacys handbagsugg bootsugg Keira KnightleyMark RuffaloCan A Song Save Your Life Link Love Zach Braff has a new, adorable BFFHuffPost CelebrityAnother tragic detail in Paul Walker's death — Us WeeklyTom Hiddleston is the new Captain Hook — Lainey GossipLearn about Miranda Kerr's rumored new beau — PeopleTaylor Swift's best audience dancing moments — BuzzFeedWho knew? Paris Hilton once dated Val Kilmer — ETOscar Issac is the next big thing — The Daily BeastAmanda Bynes may be heading to college — Pink Is the New BlogTom Daley talks about his new boyfriend — D-ListedBenedict Cumberbatch gave Madonna shade — JustJaredJessica Hart gets geek chic — Hollywood TunaYou will not believe what James Franco did — The SuperficialSource: Twitter user zachbraff Sign in to leave a comment Sign in with your account Don't have an account? Create one now! Grace Hitchcock 1 year She's adorable. Glad she is working on something new! See More Mark Ruffalo Jake Gyllenhaal May 17, 2007 Jake, Chloe and Mark Smile Big In Cannes Celebrity Babies Dec 28, 2007 Mark Ruffalo Shows Off His Newborn Daughter Scarlett Johansson Apr 12, 2012 Scarlett, RDJ, and Their Superhero Crew Step Out For The Avengers Premiere Celebrity Babies Jun 05, 2011 Miranda Does Lunch With Flynn Then Goes Green With Orlando Movies Sep 12, 2012 Video: Watch Our TIFF Movie Review of Gwyneth Paltrow's Thanks For Sharing Movies Apr 24, 2012 Mark Ruffalo Talks About His "Dope" Hulk Transformation in The Avengers See More Keira Knightley Keira Knightley Jan 08, 2008 The Look For Less: Keira Knightley's Emerald Green Atonement Dress Celebrity Justice May 27, 2007 Keira Wins Her Libel Suit Hair Mar 03, 2009 15 Different Ways to Wear Bangs George Clooney Sep 06, 2011 Gwyneth, Keira, Kate, Matt and George — See All the Glamorous Venice Film Festival Pictures So Far! POPSUGAR News Oct 05, 2009 Rob & Kristen's Night Out, Brad & Angie's Ice Cream Outing With the Twins, & Pete's Haircut! Fashion Flash Jun 19, 2012 Wear Floral Appliqué For Day or Night Like Emma Roberts and Keira Knightley! You Might Also Like Poll Jul 20, 2008 What's Tackier? healthy dose Jun 05, 2007 Healthy Dose Link Time!!!!!! Editor's Pick Jan 21, 2013 Storybook Style: Get the Look of Ginnifer Goodwin's Hollywood Home Bikini Jul 19, 2010 Katy Perry Brings Out Her Bangin' California Girl Bikini Body!