In May 2011, Robb was announced to star as Wendy in a new and dark take on the classic story about Peter Pan, tentatively titled, "Pan", but later dropped out of the project. It was reported on February 3, 2012, that Robb had landed a role in "Life at These Speeds". Later that month, Robb was cast as Carrie Bradshaw in The CW's "Sex and the City" prequel, "The Carrie Diaries", and appeared in the summer comedy, "The Way, Way Back".