Alas, belief is easier than disbelief; we believe instinctively, but disbelief requires a conscious effort.
Looking through Google Scholar for citations of Gilbert 1990 and Gilbert 1993, I see 2 replications which question the original effect:
Hasson, U., Simmons, J. P. and Todorov, A. 2005: Believe it or not: on the possibility of suspending belief. Psychological Science, 16, 566–71 http://mba.yale.edu/faculty/pdf/Simmonsj_Believe.pdf
Richter, T., Schroeder, S. and Wohrmann, B. 2009: You don’t have to believe everything you read: background knowledge permits fast and efficient validation of information. Journal of Personality and Social Psychology, 96, 538–58 http://cms.uni-kassel.de/unicms/fileadmin/groups/w_270518/pub_richter/Richter_Schroeder_Woehrmann_JPSP.pdf
(While looking for those, I found some good citations for my fiction-biases section, though.)
Looking through Google Scholar for citations of Gilbert 1990 and Gilbert 1993, I see 2 replications which question the original effect:
Hasson, U., Simmons, J. P. and Todorov, A. 2005: Believe it or not: on the possibility of suspending belief. Psychological Science, 16, 566–71 http://mba.yale.edu/faculty/pdf/Simmonsj_Believe.pdf
Richter, T., Schroeder, S. and Wohrmann, B. 2009: You don’t have to believe everything you read: background knowledge permits fast and efficient validation of information. Journal of Personality and Social Psychology, 96, 538–58 http://cms.uni-kassel.de/unicms/fileadmin/groups/w_270518/pub_richter/Richter_Schroeder_Woehrmann_JPSP.pdf
(While looking for those, I found some good citations for my fiction-biases section, though.)