Comic-Con

There's no escape, Jack Black ... that Stormtrooper mask is powerless against us!

Despite his best efforts, we were able to catch up with Jack at Comic-Con last night as he walked the streets of San Diego -- hoping to be doing so incognito.

FAIL!

Our cameraman pegged him immediately ... and Jack didn't seem particularly pleased to be outed so easily, but figured he knew why.

"Is it my gut?" Jack asked.

Nope, apparently that wasn't what tipped us off ... check out the video to find out what did.

Would you pay $445 to take a photo with Sly Stallone? These people did.

Sly was one of the attractions at NYC Comic Con this weekend ... where the going rate for a snapshot with the Italian Stallion ran just south of $500. Autographs were $395.

But the price didn't scare off legions of Stallone-aholics, who willingly shelled out the cash for a moment with their hero.

Stallone wasn't the only celeb charging for pics ... a photo with Stan Lee ran $400 bucks ... and people dropped $200 for a shot with Sigourney Weaver.

While you wrestle with the fact that these two Jack Black pictures at Comic-Con are not the same -- put a reverse leg lock on those feeling and pin the differences for the win!

With San Diego's International Comic-Con in full swing there is one sultry participant that has delivered year after year with incredibly clever (and more importantly sexy) costumes for your viewing pleasure.

Geek out on some of Adrianne Curry's best looks from her convention closet.

The cosplay pics poured into the TMZ newsroom for our annual Comic-Contest and chances are you don't have tickets to the real-deal... so geek out on the next best thing!

Be sure to check back on Monday to vote for which Comic-Con inspired pic should score the $250 prize and some great gifts from TMZ!

It's a battle of the bronze!

A shady looking 67-year-old Sylvester Stallone (left) posed at Comic-Con with 65-year-old Arnold Schwarzenegger (right) to promote their upcoming action flick 'Escape Plan.'

He was the CEO of Dunder Mifflin ... he terrorized Andy Bernard ... but former "Office" star James Spader tells TMZ he just didn't care enough about the show to watch the series finale back in May.

A well-dressed Spader -- who played Robert California on the NBC sitcom -- was hanging out at Comic-Con yesterday when he asked if he enjoyed the way the show wrapped up after 9 seasons on the air.

"I didn't see it," Spader revealed ... which is kinda shocking considering he was a major character on the show for all of Season 8. He was essentially hired to replace Steve Carell.

So why didn't he watch the finale? Was it a diss? Was he just really busy? Or, like the rest of America, did he just get bored with the storyline?

The U.K. finale was better anyway.

Will's co-star Brad Pitt couldn't make the show -- so he sent a cardboard cut out to fill in.

Of course, Will was among a dedicated -- and costumed -- SciFi geek army ... so make sure to click on the gallery below to check out all the action.