SPOILERS, I GUESS.
• Bill Murray has an uncredited cameo in the film as Icepick, Harry's meth-cooking roommate. He just gets weirder with each passing year.
As Travis, Riggle wears what may be the worst looking wig in the history of cinema. I've seen plastic Beatle wigs that looked more realistic than that throw rug. Surely can't be that hard to find a realistic looking wig in Hollywood, the hairpiece capital of the world.
• After the credits, there's a title screen that reads Dumb And Dumber For, Coming In 2034.