Continuity mistake: At the end, Adam is going through all the red tabs on the bunch of keys holding them. Camera changes and all of a sudden the tab is green.
Continuity mistake: When we see Martin in the car at the start the position of the bowl changes between certain angles. (00:02:45)
Answer: Heart attacks can cause severe to mild pain, but in some cases, the victim feels nothing. Women tend to experience less severe pain than men. Also, there is a difference between a heart attack and cardiac arrest, where the heart just suddenly stops beating, causing death. That was probably the case with Cynthia.
raywest ★