No, it's not on October 21.This Back to the Future party is happening from 12 p.m. to 4 p.m. on August 14 at Totally 80's Pizza on College Avenue. 

Ilya S. Savenok/Getty Images

Colorado's largest DeLorean show will also showcase Back to the Future memorabilia from the Totally 80's Pizza archives -- so it's probably also going to be a puffy vest convention, if you ask me. Sounds like 1.21 jigawatts of rad. Not to mention, a great photo op AND... pizza!

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