James Cameron's known for sinking millions into big budget action films or sinking ships -- but now he's jumping into the horror game with a sick Halloween display ... worthy of his Malibu mansion.

No 'Avatar' blue creatures, or 'Aliens' monsters -- instead Mr. Terminator went with more traditional macabre scenes. But check out the gallery ... his ghouls, ghosts, and cemetery will put most to shame.

Sadly, JC passed on paying homage to the first feature film he ever directed -- the 1981 cult classic "Piranha II: The Spawning."

Some urban myths about dangerous Halloween candy are frighteningly true ... according to Omar Benson Miller, who doesn't trick or treat anymore because it almost killed his brother.

We ran into Omar leaving Hooray Henry's in West Hollywood on Monday night ... and he revealed how some bad candy messed up his younger sibling and several other friends when they were younger.

Watch ... it's a scary story, and the ex "CSI: Miami" star, and travel show host for Esquire TV, even explains why he still doesn't celebrate Oct. 31.

Ray Rice and his wife Janay are fully aware of the Ray Rice costumes that have been surfacing this Halloween -- and they're telling friends they're simply praying for the people mocking them.

You've seen the pics -- people dressed up as Ray dragging around an inflatable Janay in an effort to lampoon the infamous elevator attack.

We've spoken with friends and family members close to Ray and Janay who tell us ... the couple is dealing with the unwanted attention by turning to religion.

One source tells us Ray and Janay have said they are "praying for those people."

As we previously reported, Ray and Janay have been extremely involved with their church since the incident ... and were both baptized in March when they decided to become born again Christians.

We're also told Ray and Janay are still committed to the marriage -- and have vowed to maintain their family and rebuild their lives together.

Audrina Patridge has a crazy excuse for her crazy crying session outside a Halloween party this weekend, and let's just say ... the eyes have it.

Hey, at least her explanation is more creative than her costume.

Two Choices: 1) Audrina Patridge got in a blow-out fight after a Halloween party Saturday night ... or 2) she dissolved into tears because her contacts were hurting her and her Uber didn't show.

Audrina and BF Corey Bohan had just left Hyde when she hit the ground and started bawling. Audrina tells us there was no fight -- she was just pissed because it was clear they'd have to wait forever for the Uber and her contacts were uber-uncomfortable.

Well ... we're not buyin' what she's selling. Take a look at the video. Then you decide.

The skin-filled photos have been narrowed down to five in our annual Sexy Costume Photo Contest -- and now it's up to you to decide who gets the trick and who gets the treat!

Which of these sexy snapshots should score the $250 prize and some secret spooky gifts from TMZ?

Now, THIS is interesting ...

AFI singer Davey Havoc tells TMZ Sports the Ray Rice Halloween costume that went viral is neither clever nor funny ... but there IS a way to save it.

You gotta listen to Davey's idea -- it's definitely clever ... and if executed correctly, could make a very anti-domestic violence statement.

Grab a sharp object and prepare to take your pumpkin carving skills to the next level with our signature celebrity stencils!

To be a cut above the rest... Click through the pumpkin pics and use the blue links to download and print out an easy-to-use PDF stencil to slice your very own famous face!

Robin Thicke is clearly done trying to win his ex Paula Patton back ... because the dude rolled into a costume shop with 4 chicks and bought them all sexy outfits.

Thicke hit up Trashy Lingerie -- a supplier of celebrity undies -- and we're told he dropped $2,800 on his harem of hotties ... buying them skimpy greek bras and skirts for Halloween.

As you may recall ... Thicke went on a campaign to woo Paula Patton back into his life after they broke up -- but she filed for divorce anyway.

The single life ... it could be worse.

You knew it would happen ... and last night in Los Angeles we got THAT guy -- you know, the one who dressed up as Adrian Peterson for Halloween and whipped a toy baby with a switch.

It may seem a little over the line ... but you know every costume party this year is gonna have at least one person wearing the purple #28 jersey.

And besides, it's not like he dressed up as Ray Rice!

Oh wait ... someone already did that too.

With Halloween just days away... get a little taste of what's to come by indulging in some of the stripped down snapshots in our Sexy Costume Contest!

Be sure to check back on Monday to vote for which sexy snapshot should score the $250 prize and some seriously spooky gifts from TMZ!

Carmen Electra was ambushed by her ex-husband Dennis Rodman at a Halloween party in Florida last night ... and extra security was called in to keep her safe ... TMZ Sports has learned.

Carmen was co-hosting a private "Fright Night" party in Boca Raton with Jonathan Cheban ... and was surprised when she saw Dennis waiting on the red carpet for her.

We spoke with multiple witnesses who tell us Dennis was NOT invited to the shindig (put on by The Law Offices of Berman and Berman) -- and Carmen was so shocked when she noticed him, that she waited in her limo for roughly 25 minutes while extra security was called in to watch her back.

Once she left the limo, we're told Dennis made a beeline for her ... and professed his love.

Rose McGowan is not amused by the guy who decided to dress up as Ray Rice for Halloween -- telling TMZ Sports anyone who tries to mock that situation is downright "repulsive."

The actress was leaving the Arclight theater in Hollywood on Tuesday when we asked about the photo burning up the Internet -- featuring a man dressed as Rice carrying around a blowup doll that's supposed to be Janay Palmer.

The pic first surfaced on Reddit this month -- along with the caption, "Ladies were falling for my friend's Ray Rice costume."

Of course, Rose isn't the only star who's pissed about the situation -- but the question remains ... will the public outrage actually detour people from dressing up as Rice for Halloween??? We'll see ...

Halloween at Busch Gardens became a real-life nightmare for a pregnant woman who claims she was mowed down by other terrified patrons ... after chainsaw-wielding actors created a panic in the park.

Brittany Lipscomb claims she was at the Williamsburg, VA theme park 2 years ago -- for a ghoul's night out -- and was being extra careful for her safety since she was pregnant.

In her lawsuit -- obtained by TMZ -- Lipscomb says the park hired costumed characters to chase people around with chainsaws ... causing them to run recklessly through the park.

Lipscomb claims she was knocked to the ground by the stampede ... suffering serious injuries -- including emotional distress for the well being of her unborn child. She never says if the kid was actually hurt ... but now she's suing for $25K.