Paul Walter Hauser Calls Out Vin Diesel, Despite Never Working With Him

Paul Walter Hauser is calling out Vin Diesel's alleged attitude while he's on the set of his big-budget films ... even though the 2 actors have never shared the screen. The Emmy winner ripped into the 'Fast & Furious' star after Paul's voice-acting work in "Inside Out 2" was compared to Vin's performance as Groot in the 'Guardians of the Galaxy' franchise. Though both actors notably do a lot with a little in…