4 things you may have missed at San Diego Comic-Con

The cast of "Teen Wolf" attends Comic-Con in San Diego: Cody Christian, Tyler Posey, Khylin Rhambo, Dylan Sprayberry, Holland Roden and Jeff Davis, Friday, July 21, 2017. (Dave Starbuck/Future Image/WENN)

WASHINGTON (Sinclair Broadcast Group) - What started solely as a comic book convention 47 years ago has evolved into an entertainment extravaganza.

This year's annual Comic-Con in San Diego features various TV show and movie casts, video game creators and comic book writers who promote their products and answer burning questions from fans.

For those of you who may not have been paying attention to everything that's been happening at the event, here are four things you need to know.

"Justice League" teaser

An exclusive trailer for "Justice League" was released for fans to watch at the convention.

The four-minute sneak preview begins with Wonder Woman in a fight scene at a bank. The superhero works with Batman on a mission.

"Justice League" is expected to roll out in theaters Nov. 17. Twelve million trailer views had already accumulated on YouTube as of publication.

"Teen Wolf" goodbye

The cast of "Teen Wolf" attended Comic-Con to say goodbye to its fans one last time before the upcoming final season. Linden Ashby, who plays Sheriff Stilinski, told Circa the season is about division.

"The tension keeps ratcheting up all throughout the season and it's good stuff," Ashby said.

The hit MTV show has been on the air since 2011 and will begin its very last season on July 30.

Seth MacFarlane's new TV show

The creator of "Family Guy" and "American Dad" has come up with a new concept set to debut on Fox this fall. But this time, the show is a live-action parody of a television classic.

"The Orville" is an hour-long show based on "Star Trek" in which MacFarlane plays a captain on a ship in outer space.

Circa spoke to MacFarlane, who says the sci-fi storytelling is a little more serious than fans may be expecting.

"In my mind, if you're going to ask people to sit there for an hour, you better give them more than just jokes," MacFarlane said. "You better give them ... characters they want to hang out with every week."

"Thor" trailer release

The third edition of "Thor" is coming out in November. A trailer to the movie "Thor: Ragnarok" was released on Saturday.

Chris Hemsworth stars in the movie alongside Cate Blanchett, who plays a villain whom Hemsworth faces throughout the film. This is Hemsworth's sixth time playing Thor in a movie.

It is currently the top trending video on YouTube with 11 million hits.