Continuity mistake: Watch Devlin's hands in the cafe in Rio. They open and close between shots.
Continuity mistake: Devlin walks in Huberman's place, and she is lying on the couch with a glass of milk right in front of her eyes. The angle of the camera is skewed to show her POV, but the glass of milk has vanished.
Continuity mistake: When Grant and Bergman are sitting at the sidewalk café, the rear-screen shots show the same woman two or three times coming up the sidewalk and turning to our right. Watch for her in the background over Grant's shoulder.