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The sun is shining, the tables are set and the VIP port-a-potties are standing by. Time to have a wedding!

After days of flurried preparation on their behalf, Ashlee Simpson and Pete Wentz are primed to swap vows later today at the bride's parents' home in Encino, Calif., a little more than a month after announcing their engagement.

Jessica Simpson, who hosted a rehearsal dinner for the couple last night at her Beverly Hills pad, is expected to perform maid-of-honor duties, while her beau, Tony Romo, is expected to be her date. Any other boldface names on the guest list have been kept under wraps, but the sizable tent currently set up in Joe and Tina Simpson's decked-out backyard is reportedly going to be holding about 250 people, all of whom received save-the-date notices rather than detailed invitations.

You know, for privacy's sake.

2008 Lucasfilm Ltd.

The fourth installment of Indiana Jones doesn’t hit theaters until Thursday, but there’s already buzz about making a fifth film without Harrison Ford in the lead role.

While walking the red carpet at the Cannes Film Festival for the premiere of Kung Fu Panda, George Lucas hinted to reporters about the possibility of a sequel to Indiana Jones and the Kingdom of the Crystal Skull.

"I haven't even told Steven [Spielberg] or Harrison this," he said. "But I have an idea to make Shia [LaBeouf] the lead character next time and have Harrison come back like Sean Connery did in the last movie. I can see it working out."

Although it’s hard to imagine what Lucas has up his sleeve, passing the bullwhip to LaBeouf’s character, Mutt Williams, could make sense. Rumors have been swirling for months that Mutt is Indiana’s lovechild with Marion Ravenwood, played by Karen Allen.

But, for now, diehard Indy fans can breathe easy: Ford, 65, hasn’t hung up his fedora just yet. On Friday he told reporters, "Till they tell me otherwise, I will continue to be Indiana Jones."

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The biological clock is ticking for one of the stars of 24.

Marisol Nichols, who plays Special Agent Nadia Yasser on the Fox hit series, tells E! News exclusively that she is pregnant with her first child and due in late October.

The 34-year-old actress and her director husband, Taron Lexton, 25, have five names picked out for their baby girl, but Nichols says, "I'll know which one to call her when I meet her."

E! News caught up with the new-mom-to-be at the same Bally Total Fitness center in Los Angeles that is frequented by Britney Spears. As the fitness chain’s celebrity spokeswoman, the über-toned Nichols is taking Pilates throughout pregnancy to help snap her body back in to shape after the baby is born. She hopes to return to work soon after giving birth.

Nichols and Lexton met last year when they were seated next to each other on a cruise.

"It was one of those love-at-first-sight things where we stayed up for two days talking about everything," Nichols says.

The couple, who are both members of the Church of Scientology, were married April 13 at the Celebrity Centre in Los Angeles.

Michael Caulfield/WireImage.com, Lisa O'Connor/ZUMA Press

Wedding weekend got even more officially under way tonight.

A day after Ashlee Simpson celebrated her bachelorettehood with family—including her future mother-in-law—and gal-pals, Jessica Simpson hosted a private rehearsal dinner for her little sister and Pete Wentz at her Beverly Hills home.

Red-vested valet attendants greeted the friends and family who were invited to the intimate affair, held in the elder Simpson sib's backyard. Guests were also spotted mingling on the front terrace.

Candlelit tables and twinkling white lights strung through the trees helped set the mood.

A source tells E! News that Ashlee and Pete arrived via limo at about 7:45 p.m., while a team of security guards held court on the street outside.

There's no confirmation yet that Jessica's boyfriend, Tony Romo, was there, but the NFL star is reportedly planning to accompany the singer to the Simpson-Wentz wedding tomorrow night. The apparently cohesive couple were spotted having lunch at the celeb-frequented Katsuya in Hollywood earlier today.

—Reporting by Matt Donnelly and Claudia Rosenbaum

Michael Caulfield/WireImage.com

The clock is ticking, the event-planners are bustling and maybe, just maybe, a fetus is growing.

After saying their respective farewells to the single life on Thursday night—which, aw, ended with the duo recoupling at the Roosevelt Hotel—Ashlee Simpson and Pete Wentz are primed to swap vows sometime Saturday.

Sources once placed the nuptials at a friend's house in the tony beachside town of La Jolla, Calif., but now all signs are pointing to a Valleyfied affair at parents Joe and Tina Simpson's Encino home.

Party preparations started taking place Thursday as Simpson family employees, an SUV full of balloons—and, at one point, Jessica Simpson herself—were spotted bustling in and out of the Royal Oaks Colony, the gated community where Joe and Tina live.

And, thanks to telephoto lens-toting paparazzi, a tent was spied going up in their spacious backyard.

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Michael Becker / FOX

If you've got some Benjamins riding on a David, be warned: Only one of them is Cooking. At least according to the bookies.

The online oddsmakers at BetCRIS.com have unveiled the favorite to take the American Idol crown...let's just say Papa Archuleta may have to be restrained.

Former bartender and Missouri's favorite rocking son David Cook is the odds-on pick to succeed Jordin Sparks during next week's finale, given a 74 percent chance of winning the whole shebang, per the online bookies.

Despite starting the season as the overwhelming favorite, tween dream David Archuleta has just a 32 percent possibility of becoming Simon Cowell's newest protégé, per the betting line.

Of course, last we checked, Gambling 101 was not a part of a grade-schooler's course load, meaning the actual voting demographic might not jibe with the oddsmaker's pick and it still could be anybody's contest.

George Pimentel/WireImage.com

Lauren Lee Smith can see dead people.

At least beginning this fall.

Looking to fill the void left by the departures of Gary Dourdan and Jorja Fox, The L Word veteran is joining CBS' CSI: Crime Scene Investigation as a series regular, the network announced today.

The 27-year-old Smith will play Bryce Adams, described as a "smart, flirtatious and witty nonconformist" obsessed with the underbelly of society, who got into police work to rebel against her disapproving psychiatrist father. She joins Gil Grissom's crack squad working the night shift.

The Vancouver-born thesp had a recurring stint on Showtime's The L Word as sous chef Lara Perkins. Her film credits include last month's thriller Pathology, as well Art School Confidential and alongside Casey Affleck and Zach Braff in The Last Kiss. She teams up with Ashley Judd and Goran Visnjic in the drama Helen, due out in October, and will appear in next year's horror anthology Trick or Treat.

Fox and Dourdan both decided not to reup with CSI after failing to hash out new contracts. With Smith in place, producers still must fill the role of Ray Santoro, billed as a "handsome, smart and athletic" CSI who takes on the graveyard shift at the crime lab.

Denise Truscello/WireImage.com, Steve Granitz/WireImage.com

Welcome to the justice system's new nightmare.

Pauly Shore has filed a motion in L.A. Superior Court opposing horror meister Wes Craven's request to have the Jury Duty star's lawsuit over damage to his Hollywood Hills property dismissed.

Craven sued Shore last summer, claiming the funnyish-man failed to take neighborly precautions while renovating his backyard in 2006 and that runoff from Shore's new pool and spa contributed to slope failure in his yard.

Shore countersued in February, alleging the Nightmare on Elm Street director didn't properly maintain his own hillside vegetation and landscaping, thereby causing a landslide on Shore's lot in December 2006.

Craven subsequently claimed Shore waited too long to file suit, and now the actor has responded by arguing that he didn't know the root of the outdoor evil until he had his and Craven's respective properties inspected and tested. Then, he says, he took action right away.

A hearing on Craven's motion to dismiss is set for May 28. Otherwise, both cases are scheduled to go to trial Oct. 15.

It's probably safe to assume this is not part of a new Disney ad campaign for the happiest place on earth. It's probably a lot closer to the strangest place on earth.

"Rehab" crooner Amy Winehouse and equally troubled pal Pete Doherty appear in this disturbing new collaboration. But it's no music video, despite a feeble attempt to improvise a little ditty. Instead, the trainwreck twins pick up a container of newborn mice and put on a creepy little show, giving each of them a "voice"—including one with a message for Amy's Blake Incarcerated.

Yeah, this is all gonna end well.