Olsen, Mark (30. 7. 2013). „Review: 'The Smurfs 2' lives up to predecessor's mediocre standards”. Los Angeles Times. Приступљено 31. 10. 2013. „Even though the "Smurfs" films never quite took full advantage of Winters' antic comedic gifts in the role as the softly wizened Papa Smurf, the end credits feature a dedication to the late comedy legend for "making the world a smurfier place."”
„Sony Management Discusses Q2 2013 Results - Earnings Call Transcript”. Seeking Alpha. 31. 10. 2013. Приступљено 31. 10. 2013. „One which is quite understandable in that some of the major films underperformed at the box office. White House Down, Smurfs 2, we had higher expectations.”
