06/11/2014 10:22 am ET | Updated Jun 11, 2014

Jim Carrey And Jeff Daniels Bring The 'Dumb' To Jimmy Fallon's 'Real People, Fake Arms'

Just when you thought they couldn't get any dumber, Jim Carrey and Jeff Daniels go and do something like this.

While stopping by "The Tonight Show" to unveil the much-anticipated trailer for "Dumb and Dumber To," Harry and Lloyd reminisced with Jimmy Fallon about when they all starred together on the Canadian soap "Jacob’s Patience," a show in which they refused to use their own arms.

And then things got "dumb" in the best way.

"The Tonight Starring Jimmy Fallon" airs weeknights at 11:35 p.m. ET on NBC.


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