STARS' EGO TRIPS TRIP UP FLICKS  —  IT'S bad-behavior time on the sets of a trio of movies now being shot.  —  Chris Tucker, the star whose large paycheck and ego have been well-documented, has been demanding script changes in "Rush Hour 3."  —  "He won't come out of his trailer until …

Alanis Morissette, Ryan Reynolds End Engagement  —  Ryan Reynolds and Alanis Morissette have called it quits - and this time, it's official.  —  Their reps, Dvora Vener and Meredith O'Sullivan, tell PEOPLE in a joint statement, "Ryan Reynolds and Alanis Morissette have mutually decided to end their engagement.

Fergie: I'm Not Engaged - Or Pregnant  —  Fergie wants to set the record straight, again: She and her boyfriend, Las Vegas star Josh Duhamel, are not engaged.  —  "I've heard that I've been engaged probably about seven times, and pregnant, but I've never been either," she told reporters in Miami on Thursday.

Jennifer Lopez Says She Wants 'One or Two' Kids  —  Jennifer Lopez wants children - but not too many!  —  In an interview on The Ellen DeGeneres Show airing Friday, the host asks the singer-actress-designer, "Do you want kids?"  —  "Yeah, I do," says Lopez, 37.  "I absolutely do."

Katie Holmes: I Love Calling Tom 'Husband'  —  In her first sit-down interview since her November wedding to Tom Cruise, Katie Holmes reports on married life - and, no surprise, the news is good.  —  "I have a husband and children that I adore.  I have a career that I really love.

Chapman film: Imagine there's no audience  —  'Chapter' and Vs.: Jaret Leto and Lindsay Lohan star in the controversial movie.  —  John Lennon fans are calling for a boycott of a movie about his killer, Mark David Chapman, even as producers left Sundance without a distributor.

Britney Groveling to Get Back with K-Fed?  —  Britney Spears has been making late-night phone calls to K-Fed in hope of a reconciliation, so say several of Kevin's close peeps.  They tell TMZ that Britney's relationship with Isaac Cohen is a ruse to make Kevin jealous.

NEW SET OF LIPS  —  IT looks like Mary-Louise Parker has split from her "Weeds" co-star Jeffrey Dean Morgan.  Page Six spotted Parker and Morgan last December looking very much together at Soho House, but they were seen arguing last week at Nobu Next Door.  "She was trying to hold his hand and get his attention," said our source.

Sienna Kicks Ass in 3" Heels  —  Sienna Miller kicked up her heels yesterday — to let a photog have it!  —  The "Factory Girl" star was headed into a NYC building when she was ambushed by flashes, but instead of her usual smile and duck technique, Miss Miller opted for a camera shove perfected by her ex, Jude Law.

Matt Damon in Berlin - RGS exclusive  —  Melanie just sent me as promised some more set photos from "The Bourne Ultimatum" film set in Berlin.  It turns out that Melanie is not just an awesome graphic designer but also a natural born paparazzi.  —  Cute hear muffs by the way

Nicole Richie Will Not Be Pleased  —  Mandy Moore, who is dating The Simple Life star's former fiance DJ A.M. gave this juicy quote to the new issue of Seventeen magazine:  —  "Oh, God!  I tell you what: In this industry it's my job to look a certain way or whatnot - and it's' weird for men too.

TOMMY TURN-ON  —  HARD rocker Tommy Lee has a soft side, and he's not afraid to flaunt it.  Spies at nightclub Home on Wednesday witnessed Lee fawning over his cocktail waitress.  "He was obsessed with her," we're told.  "He kept telling her about a new line of lingerie for men and his new perfume line.

Johnny Knoxville Separates From Wife  —  Johnny Knoxville's rep confirms to Usmagazine.com that the Jackass star is calling it quits on his marriage.  "They have been separated," Amanda Silverman, Knoxville's rep, tells Us.  —  Knoxville, 35, and his wife Melanie have been married since 1995 …

'Don Vito' Margera hit with sex charge  —  GOLDEN, Colo. - Reality television's Vincent "Don Vito" Margera, uncle of "Viva La Bam" star Bam Margera, was ordered Thursday to stand trial on felony charges that he groped three girls at an MTV promotional appearance.

Sam-Whore-A Shows The Goods in Maui  —  Ok so if you're tired of seeing the youthful crotches of the likes of Britney Spears and Lindsay 'Firecrotch' Lohan then how about the used and abused crotch of 35-year old MILF Denise Richards?  I know it's not quite the 'Full Frontal' variety that Brit …

It's Official!  Roth to Rejoin Van Halen  —  Break out your spandex pants, start practicing your karate kicks; David Lee Roth is officially returning as the front man for Van Halen.  —  Founding band member Eddie Van Halen made the first official announcement to TMZ, saying …

Charlize Theron Surprises Hollywood, Again  —  The Oscar-Winning Actress Is Out With a New Documentary  —  The world has learned to expect the unexpected from Charlize Theron.  —  Now, the Oscar-winning actress has stepped from in front of the camera to behind it.

Vince Vaughn Wants Aniston Back  —  Los Angeles, CA (BANG) - Vince Vaughn is wishing he could turn back the hands of time and walk merrily down the street with "Rachel."  —  Vince is desperately trying to get ex-girlfriend Jennifer Aniston back, his friends have claimed.

Vanessa Continues her (Rumored) Tirade of Jealousy  —  Nick and Vanessa seem to be happier than ever, but, as usual, the rumors regarding trouble in their smiley paradise circulate around either Vanessa's jealous streak or her insane desire to immediately get married.  Ahhh, thank goodness for covert misogyny.