Charlize Theron’s not exactly knitting sweaters as she nears 50 -- nope, she’s out there keeping things spicy and showing the young ones how it's really done ... 'cause age ain't nothing but a number, darling!

The Oscar-winner hit up 'Call Her Daddy' and dropped a gem -- the 49-year-old's only had about three one-night stands in her life, but the last one? "Really f***ing amazing" … and the guy was just 26.

Yup, Charlize was practically radiating as she spilled the tea -- admitting she'd never pulled a move like that before, but it was chef’s kiss.

When "Back to the Future" premiered in 1985, it shot Michael J. Fox to stardom for his much-lauded portrayal of time-displaced teenager Marty McFly.

However, fans of the sci-fi-comedy franchise later learned that the role was almost filled by a different actor, Eric Stoltz, who actually spent a considerable amount of time on set portraying the character.

We're going to take a look back at how the film's cast was almost led by a different star -- and how its crew navigated the aftermath of the shakeup while working on the hit flick.

The Efron family's got some good genes ... 'cause Zac and Dylan Efron are a set of seriously hunky brothers!

Zac's been a heartthrob for years ... but his younger sibling has recently found himself in the spotlight thanks to his well-received participation -- and big win -- on the reality competition show "The Traitors."

It seems like fans have plenty of room in their hearts for both Efron brothers ... but who will rank supreme on the beefcake meter? The famous siblings enjoyed a boat day recently ... and looked quite fine as they soaked up the sun. But the question here is: Who'd You Rather?!

Canadian actor Liam James was 16 years old when he played Duncan -- the awkward, shy introverted teen whose lacking confidence because of his father's absence -- in the 2013 comedy/drama film "The Way Way Back."

Liam shared the big screen with Steve Carell as Duncan's manipulative and selfish step dad, Trent, Sam Rockwell as Duncan's charismatic friend and mentor, Owen and Jim Rash as the sarcastic underdog who joins the spontaneous dance, Lewis.

Other notable cast members include Allison Janney and Maya Rudolph.

Halle Bailey found the perfect way to relax in Italy after her grueling custody battle with her ex, DDG -- with the company of a new beau while her buns baked in the sun!!!

"The Little Mermaid" actress was in Positano, Italy, on Saturday, where she and her mystery man were spotted splashing, kissing and cuddling under the Mediterranean Sea.

Halle looked happy posing her bikini bottom for her chocolate, dreadhead man -- but couldn't prevent her thong, th-thong, thong, thong going up the wrong, wr-wrong, wrong, wrong way!!!

Shaquille O'Neal was back on the set of "Gravesend" Tuesday ... filming scenes for the mob drama while looking far more like a crime boss than a lovable basketball legend.

Check out these images TMZ Sports has obtained ... the 15-time NBA All-Star was decked out in a huge gold chain, a black track suit and some specs as cameras rolled on him for his part in the Amazon Prime series.

Playing "Mustafa," he chatted away with businessman and producer, Jas Mathur, who also has the role of "Miguel" in the hit show.

The ongoing legal war between Blake Lively and Justin Baldoni has taken another turn ... with notable online personalities being drawn into the fight over possible collusion via their Blake-bashing commentary.

A source with direct knowledge tells TMZ ... Perez Hilton, Candace Owens and Andy Signore have all been subpoenaed to turn over any and all communications with Justin Baldoni and the Wayfarer parties.

The subpoenas may be connected to the judge's order earlier this month allowing Blake to take discovery in order to uncover the alleged lengths -- if any -- Baldoni's side may have gone to in working with notable anti-Blake content creators ... as part of the alleged smear campaign.

Keith Urban's got beef with a radio show Down Under after he seemingly ditched his interview when the hosts asked him an X-rated question involving his wife.

It's no secret the country crooner and Nicole Kidman like to keep their relationship private ... but that didn't stop Australia's Mix 102.3 hosts Hayley and Max from bringing her up during a game of "Wall of Truth."

The pair got right into the nitty gritty, asking ... "What does Keith Urban think when he sees his beautiful wife with beautiful younger men like Zac Efron having these beautiful love scenes on TV and radio?"

Orlando Bloom's got Buddha on his brain following his split from Katy Perry ... taking to Instagram to post a cryptic quote about new beginnings from the spiritual teacher.

Check out the actor's Monday post --  he seems to be doing some serious reflecting by sharing Buddha's saying ... "Each day is a new beginning. What we do today is what matters most."

But he didn't stop there -- Orlando took to his story to share a message from Japanese author Daisaku Ikeda that reads ... "The important thing is to take that first step ... Bravely overcoming one small fear gives you the courage to take on the next."

Just chalk this one up to an awkward moment for Gillian Anderson during Paris Fashion Week.

The 'X-Files' star was seated between fellow A-list actors Matthew McConaughey and Emma Roberts, both of whom were deep in conversation while seemingly ignoring Gillian at Sunday's Jacquemus "La Paysan" show.

Check out the video that captured the fleeting moment ... all three celebs are sitting close together with Matthew and Emma facing each other on either side of Gillian, who is quietly staring forward.

Arnold Vosloo -- the actor famous for playing the villain in "The Mummy" -- is now facing his own real-life horror … divorce!

Arnold's wife, Sylvia Vosloo, recently pulled the plug on their marriage -- citing “irreconcilable differences” after nearly 27 years together, according to court docs, obtained by TMZ.

But here’s the twist ... the docs list the date of separation as April 2022, meaning these two have been living separate lives for over three years.

Newly engaged Dua Lipa and Callum Turner are so steamy together ... they needed the ocean to help cool them down!

The pop star and her fiancé were snapped pouring on the PDA while they were all loved up on a raft along Italy's Amalfi Coast ... all between plunges into the crystal-clear Mediterranean waters.

As for Dua ... we sure hope she used plenty of sunscreen, 'cause she was rockin' a skimpy polka dot bikini -- leaving lots of skin exposed and very little to the imagination.

Charlize Theron's not upset she didn't get the invite to Lauren Sanchez and Jeff Bezos' star-studded wedding ... 'cause she says everyone there "sucks!"

The actress made the comment at her fifth annual Block Party in support of the Charlize Theron Africa Outreach Project Saturday night on the Universal Studios Backlot ... telling her guests not to feel bad that they weren't living it up in Venice.

CT says, "I think we might be the only people who did not get an invite to the Bezos wedding. But that’s OK because they suck and we’re cool.”

American actor Douglas Bourne AKA "Doug E. Doug" was in his early 20s when he was cast to play Sanka -- the push cart racing, egg-kissing champion who's funny, loud and laid back -- in the 1993 feel-good sports film "Cool Runnings."

Bourne shared the big screen with John Candy as the former Olympic bobsledder (disqualified for cheating), Irv, Leon Robinson as the motivated, determined to make it to the Olympics dude, Derice and Rawle D. Lewis as the bobsledder who feels pressure from his father, Junior.

Douglas also played Griffin Vesey on CBS's sitcom show, "Cosby."

Gypsy Rose and Ken Urker have a strong connection as a couple ... but, not so much during karaoke -- 'cause they didn't pick the right song for them it seems.

TMZ has obtained video of the happy couple -- who welcomed their first child together late last year -- at Cat's Meow 2 World Famous Karaoke Bar Friday night ... and, they stepped up to duet the track "Shallow" from "A Star Is Born."

Ken's super into the track ... belting out the notes with a passion we bet Bradley Cooper can hear from his place in NYC -- but, when it's time for Gypsy to sing, the confidence just ain't there.