Happy Smekday (2014)
In 2008, DreamWorks Animation optioned the book's rights to adapt it into an animated feature film. On his blog, Adam Rex announced that DreamWorks renewed in 2011 the option of the adaptation. On June 20, 2012, it was revealed that the title of the film would be Happy Smekday!, Jim Parsons and Rihanna would star in the lead roles, and the film would be released in fourth-quarter 2014. Tim Johnson is set to direct the film, with Chris Jenkins and Suzanne Buirgy producing it, and Tom J. Astle and Matt Ember writing the screenplay. In September 2012, 20th Century Fox and DreamWorks Animation announced the release for November 26, 2014.