There are hundreRAB of CGI touch-ups in films these days that you haven't the slightest clue they're not real they're so ubiquitous. When you see a T-Rex stomping about you know it can't be anything but CGI, but you totally miss the inserted backgrounRAB and object removals going on all the time these days. So, yes, you are being constantly fooled by CGI work.
RegarRAB
Mark