Revealing mistake: When Howard's couch starts to shake the ashtray and table on his left don't move an inch.
Visible crew/equipment: After Howard and Beverly exit the museum the boom mike is reflected on the left door.
Revealing mistake: Very obvious ramp hidden behind the stall to allow for the cop car to jump.
Revealing mistake: When the microlight is flying, Tim Robbins' stunt is very noticeable.
Continuity mistake: When Lt. Welker meets Howard his arm is bent. A shot later it's raised.
Visible crew/equipment: When Dr Jenning is driving his stunt is very noticeable.
Revealing mistake: When they're riding with Jones look closely in some shots and you'll see Lea Thompson's stunt double.
Continuity mistake: For a few moments during the flight scene near the end of the film Tim Robbins has no handcuffs on, but they are back on again seconds later.
Answer: He means, what happens to him in that very scene.