Human Flow - S1-E1
Visible crew/equipment: During Ryan's segment, Sun, leads him into a house. The camera tracks behind them up some steps. The operator is visible in the glass on the left side briefly.
Revealing mistake: During the chase, the minivan makes multiple turns into alleys and onto roads. Tire marks are visible where multiple takes of the stunts were performed.
Revealing mistake: Multiple times when we see the speedometer of the minivan, the RPMs aren't moving. The car's shifter is also noticeably in park. This is obvious as its higher, whereas if were in drive, it would be lower. Even during the most intense moments, the RPMs never change. The car is obviously being towed by a camera vehicle.
The Stadium - S1-E8
Deliberate mistake: The Korean lady's Mini-Uzi never runs out of ammunition, and she's spraying it at full-auto. A Min-Uzi's cyclic rate is 950 rounds/min. One long squeeze of the trigger and the weapon's dry. Same goes for all the other weapons like the M4 carbines being fired on full-auto, they have the infinity ammo cheat code going here.