TINSELTOWN SPYWITNESS.

Byline: Elizabeth Snead

WHO'S BAD?: There's nothing hotter than a Miami Beach club on a Saturday night. Nothing except the ``Bad Boys II'' blowout bash Wednesday night.

The grounds outside the Wadsworth Theatre in Westwood were lavishly decorated to look just like a huge, sexy and stylish South Beach party scene, complete with elevated patios surrounding a lit swimming pool, miniskirted dancing girls, potted palms, sea grass rugs, brightly colored cabanas, Tiki hut food stalls and glowing Lucite bars surrounded by half a dozen snazzy speedboats and racy mini-yachts.

After the premiere at the Mann National theater, ``Boys'' stars Will Smith, with his wife, Jada, Martin Lawrence, Gabrielle Union, Joe Pantoliano and the film's producer, Jerry Bruckheimer, and its director, Michael Bay, piled into a fleet of bright yellow SUVs for the five-minute ride to the party. There, guests Tyrese, Faye Dunaway, Aisha Tyler, Cedric the Entertainer, Jon Seda, Kelly Rowland and Jon Voight could kick back, party hard and partake of seafood serviche, corn dogs, fish fritters, tacos and tropical rum drinks.

Why the tropical Miami mood? Because the film is set in Miami, silly. ``Boys'' is the amusing and fast-paced buddy flick about two bickering cops who try to take out a Cuban drug lord and keep destroying cars and blowing up buildings in the process. The body count has to be triple the first film, released back in '95, which was Bay's very first feature. The then-fledgling director, who had only shot some music videos, never imagined he'd ever make a sequel.

``Back then, I was just hoping I would get another directing job. That was my only goal,'' said Bay, who has since scored big with Bruckheimer blockbusters ``Armageddon,'' ``The Rock'' and ``Pearl Harbor.''

``After Pearl Harbor, I wanted to do something easy and smaller. But this turned out to be huge and really complicated. I just wanted to something quick and fun but I had no idea it would be such a pain in the ass.'' How was shooting in Miami in the dead heat of summer? ``I love Miami, but man, it's really hot!''

The ``Bad Boys'' party really got started when music and fashion mogul P. Diddy, who appears in the music video of the film's theme song, arrived with his posse of bodyguards. He sat at a table chatting with Union, Theresa Randle and Taye Diggs. He was dressed in a pale gray gansta suit, white shirt and dazzling diamonds in his ears and on his fingers. But he also made the rounds, posing for photos with his pals Bay, Bruckheimer and Smith (clad in street-wise jeans), and he got cozy with several studio heads. Smith was in a particularly good mood. And why not, with yet another potential summer blockbuster and a new TV show he's producing?

``I'm just doing it Willy-style,'' he said of his multiple projects. ``The TV show is called 'All of Us,' and it's on UPN in the fall, and it's always great to walk down a red carpet when the movie is this good. This one is a real crowd-pleaser. It's not something for everyone but specific things for specific people.''

Lawrence had just wrapped another sequel, ``Blue Streak 2.'' So how about a third Bad Boys?

``I'll probably always be a bad boy,'' said Lawrence, who's gotten into a little trouble before - in '96 for carrying a loaded gun at the Burbank Airport and for slugging a guy at a Hollywood nightclub in '97. ``But I'm working on being a good bad boy.''

IT'S NOT EASY HAVING GREEN: Ever wondered what it would be like to be born knowing you never needed to work a day in your life?

It's not all it's cracked up to be, according to Ivanka Trump, Donald's daughter and one of the 10 privileged progeny featured in HBO's fall documentary ``Born Rich.'' In the film, directed by her friend Jamie Johnson (the 23-year-old heir to the Johnson & Johnson pharmaceutical fortune), Trump talks about the very public divorce of her parents.

``I am proud of who I am and how my parents raised me but there are times when it's easier not to live in a fishbowl,'' says the statuesque blonde, who is studying business at Penn State University. ``In the film, I talk about my family's divorce and it's times like that you really wish you were totally anonymous.''

Does she find it hard to know if people like her for herself, not her dad's money?

``I'm lucky to have a core group of friends who have been my best friends since I was 5. But for better or worse, I am always a little bit guarded with new people although I'm a pretty good judge of character.''

MAKING HOLLYWOOD SWEAT: There's more than special effects to Lara Croft.

To get in shape for the physically demanding stunts in ``Lara Croft: Tomb Raider - The Cradle of Life,'' Angelina Jolie literally sweated it out with Hollywood's toughest trainer, Gunnar Peterson. This trainer to the stars puts his famous clients through their paces at his 5,000-square-foot state-of-the-art private gym tucked away behind the Beverly Hills Hotel.

``The people I train can't work out at public gyms,'' Peterson explains. ``It just gets too annoying for them.''

His client list includes athletes Tiger Woods, Bruce Jenner and Mike Tyson, among others, as well as actresses Liv Tyler, Jennifer Connelly, Penelope Cruz, Cameron Diaz and Lucy Liu. Peterson also keeps that hot Hollywood duo Jennifer Lopez and Ben Affleck in shooting shape. If you've seen photos of Jen and Ben kissing in their gym clothes, the pixs were snapped outside Peterson's private gym by persistent paparazzi who hide in parked cars. A windshield tap from Peterson makes them leave. But they always come back.

``One day Penelope came in and said, 'I think you should know there's a man with a camera in a tree across the street,''' Peterson said, shaking his head. ``I went out and said, 'What is wrong with you?' He said, 'I'm just doing my job.' Finally, he climbed down and left.''

Peterson makes his clients get down with a varied routine of core work, cardio and weights, and stability and balance training. He makes them run the steep stairs behind his gym, a replica of the famous Santa Monica stairs.

What's the secret to J.Lo's buffed butt? A series of lunges with 8-pound dumbbells in each hand and squats (two to five sets of 10 to 15 reps) with weights on a bar held behind the neck. ``Anyone who can sit on a toilet can do them,'' says the Sultan of Squats, who initially trained Lopez for her role in ``Enough.'' For Jolie's beautiful biceps, try multiple sets of bicep curls with 8- to 10-pound weights - regular, preacher, hammer and cable curls. Peterson has high praise for Jolie. ``She's phenomenal as a person and in the gym. She's a gamer. You can take her through hard exercises, hard reps, slow cadence, whatever, she's right there with you. She is so considerate, always on time and there to do the work. You'd be surprised at how strong - considering her size - she is.''

Not every actress is that determined. Peterson recalls a big-eyed short brunet actress who chain-smoked and was either a no-show or would call half an hour after her appointment from the Four Seasons, where she was still in bed with her boyfriend.

``She just didn't get it,'' Peterson said. ``Finally her publicist called and said the actress was going to work out on her own. I said, 'Good luck.' ''

CAPTION(S):

3 photos

Photo:

(1) LAWRENCE, SMITH: Have badges, will smash cars.

Steve Granitz/WireImage.com

(2) JOLIE: Belly up to the barbell.

(3) TRUMP: Now that's rich.

Lester Cohen/WireImage.com