Comic-Con is in full swing in San Diego this weekend, and the screening of a new trailer for “Batman v. Superman: Dawn of Justice” Saturday had the hashtag #BatmanvSuperman topping Twitter’s list of trending topics most of the day.

The new trailer featured a few seconds of previously unseen footage of actress Gal Gadot (also trending) as Wonder Woman, which had the audience cheering, but it was a few frames from earlier in the trailer that caught the eye of some conservatives.

Subtle indeed; check out the protesters in front of the Capitol carrying signs reading, “Superman = Illegal Alien,” “Aliens Are Un-American” and the very obviously Westboro Baptist Church-inspired “God Hates Aliens.” There’s also a Superman symbol with the “S” replaced by a swastika (but not a Confederate flag; shooting started a while ago).

Here’s a wider view:

batman-v-superman-still

Just a coincidence, or another example of a comic book franchise trying to be topical?

That takes us back to “Superman Returns,” which asked if the hero still stood for “truth, justice, all that stuff.”

We are anxious to see which president Spider-Man saves next. Hillary would look so badass on a special inauguration day cover:

spiderman-obama

“When we heard that President-Elect Obama is a collector of Spider-Man comics, we knew that these two historic figures had to meet in our comics’ Marvel Universe,” Marvel’s Joe Quesada explained at the time. “A Spider-Man fan moving into the Oval Office is an event that must be commemorated in the pages of Amazing Spider-Man.”

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Related:

‘Truth, Justice, and … all that stuff’: Liberalism becomes Superman’s kryptonite