More than 100,000 movie, TV and comic book fans were in attendance for all the fun.
Movie memorabilia, collectables, comic book art and more were selling to event-goers.
Profiles in History was also at the event with a preview of a Debbie Reynolds and Carrie Fisher auction set for September. It includes Reynolds' special Maltese Falcon reproduction and Fisher's more eclectic offerings and personal movie items.
The best thing of all may be the costumes. There were the carefully constructed costumes, the ones that require a second look and the ones you don't quite understand.
2017 Comic-Con International: San Diego is expected to run through Sunday at the San Diego Convention Center.
Watch Entertainment Guru George Pennacchio's full report in the video above.