Steven Spielberg Holy Crap! Is that Spielberg Hittin' a Pipe on 4/20?!!?!

4/22/2014 12:40 AM PDT BY TMZ STAFF

 So riddle us this ... if it looks like Steven Spielberg, tokes like Steven Spielberg, and claims to BE Steven Spielberg puffin' away at the Cannabis Cup on 4/20 ... is it Steven Spielberg?

The annual celebration took place in Colorado and the guy who shot the video says Stoneyberg told everyone he WAS the famous director -- so potheads were hooking him up with free dabs.

And then there's this tidbit ... Spielberg's wife Kate Capshaw was at Coachella.

Sadly ... no midlife here.  A rep tells us it's not S.S.

Bummer, dude.