Is San Diego Comic-Con worth skipping? Hollywood studios debate. But for the time being they're committing with big projects like 'Tron: Ares' & HBO's James Gunn show 'Peacemaker'

Pack up for Camp Half-Blood when the fantasy series returns, this time introducing Tantalus, Thalia and the goddess Athena to the story. The new season arrives on Disney Plus on Dec. 10, and fans will see Percy dealing with more than fantastical monsters: Grover goes missing and there's drama with friends and a new sibling.

Anthony Mackie, Jo Koy and Elijah Wood were among the actors, comedians and stars of other media seen at the convention’s first day.