Ed Helms will play Rusty Griswold in the comedy, while Christina Applegate will appear as his wife. Chevy Chase and Beverly DíAngelo are set to make cameos. John Francis Daley and Jonathan Goldstein wrote the script and are making their directorial debut.
The new version of the vacation adventures of the quirky dad and his family will follow Rusty, who now has his own family misadventures on the road.
Hemsworth will reportedly play the husband of Rustyís sister, Audrey (a role that has not been cast), while Day is expected to cameo as a river rafting guide.
Chris Bender, David Dobkin, Jeff Kleeman are producing. Filming is scheduled to start in September.