Tichina Arnold is gonna blow your mind in the first movie produced by Netflix and the WWE ... 'cause she's gonna change your concept of what grandmothers look like.
Tichina was on Tuesday's "TMZ Live" to talk about "The Main Event," when the conversation quickly turned to that old saying ... Black don't crack!!! See, she's playing grandma -- or as she puts it, G-ma -- to an 11-year-old kid who gets his shot to become a WWE superstar.
You gotta see what happened when we brought up her role ... mistakenly thinking she's playing the kid's mom.