Plot hole: Throughout the franchise we are taught that when someone intervenes in death's plan that person is skipped until it circles back around for another attempt. However in Janet's case she is skipped by intervention at the car wash but is killed at the movies before the pattern is complete had the last vision unfolded as normal.
Suggested correction: It is revealed that Death screwed around with Nick, as Death always planned the three to die at the Cafe, not earlier. This means that Death was screwing with Nick and his Mall-Disaster premonition.