The first animated Flintstones movie in 14 years.

The Undertaker was the only wrestler to use his normal name.

C.M. Punk had left the WWE in January 2014 on bad terms, but he had recorded his lines for the movie in August 2013 during that year's SummerSlam, and the production was too far gone to edit him out of the movie.

According to Daniel Bryan, the wrestlers recorded their lines during SummerSlam in 2013. Collette Sunderman was the casting and voice director.

WARNER BROTHERS ANIMATION TRADEMARK: John Cenastone arguing with Daniel Bry-Rock to do something he didn't want to do, then, with raised eyebrows, pulls a word-switching gag (ala Bugs Bunny) to get Daniel to agree to do it.