TMZ.com

Zac Efron's "High School Musical" days might be long gone ... but we're thinking there's still plenty of good vibes on his side, because he's celebrating his 38th birthday on Saturday!

We figured it'd be a good idea to whip up a little gallery of the former Disney star's hottest shots and see how he went from a teenage dream to a Hollywood heartthrob in just a few years!

Sydney Sweeney went from boxer to Barbie for the red carpet premiere of "Christy" ... and we have pics!

Check 'em out ... the actress stepped out in a pale pink, sheer lace number with a flowy skirt and sequin-embellished neckline in London Town Friday.

Despite playing extremely tough fighter Christy Martin in the movie, Sydney was a total softie at the premiere ... snuggling up to fans for selfies. Inside, Syd graciously shared the stage with her collaborators in front of the BFI London Film Festival crowd.

Actress Samantha Eggar -- best known for "The Collector," "Doctor Dolittle" and "The Molly Maguires" -- has died, TMZ can confirm.

The lively British actress died peacefully Wednesday surrounded by family at her home in Sherman Oaks, Los Angeles ... her family tells TMZ. We're told she struggled with a "long illness" before her passing.

Samantha hit the big screen running, earning an Oscar nomination for her breakout role in the 1965 film "The Collector." She went on to have a prolific career, appearing in more than 100 projects on the big and small screens, including voiceover work.

Al Pacino and Diane Keaton were broken up for years before she passed away ... but, he says all the memories have come flooding back since her passing.

The legendary actor released a statement about his late costar and ex-girlfriend -- with whom he shared an on-again, off-again relationship from 1974 through 1990 ... admitting news of her passing shook him to his core.

Pacino calls Keaton his "partner" and friend ... and says she changed the course of his life on more than one occasion.

Jonathan Majors is opening up ... saying he once hit such a dark place he had suicidal thoughts and even ended up on suicide watch.

He dropped the bomb on Kirk Franklin’s "Den of Kings" podcast ... saying wife Meagan Good was the one who kept him afloat. Even back when she was just his GF and fiancée, they didn’t really talk much about it -- but she always made sure he wasn’t alone.

Jonathan said he, too, ensured he was never alone -- even telling Megan straight up he wasn’t sure he wanted to keep living.

"The Blind Side" star Quinton Aaron has been on an up-and-down battle with his weight, but right now he's up ... by being down 200 pounds.

Quinton tells TMZ, "At my heaviest, I was 575 pounds. As of today, I am 370 pounds."

What's even more incredible ... he did it all without Ozempic. Quinton says he tried the drug about a year ago because he's diabetic, but stopped after he had an allergic reaction.

Steven Van Zandt is praising Jeremy Allen White's work as Bruce Springsteen on the big screen ... telling us it's one of the most emotional movies he's ever seen.

We got the E-Street Band guitarist in New York City on Tuesday and our photog asked him about Jeremy's performance in "Springsteen: Deliver Me From Nowhere."

Steven says Jeremy is "incredible" as Bruce and he says folks don't even need to know Bruce or his story to appreciate the acting in the movie, which he's already predicting as the movie of the year.

Daniel Stern -- best known for his role in "Home Alone" -- was rushed to the emergency room earlier this month ... but fortunately, he is doing just fine now.

This incident went down on October 7th, with the Ventura County Fire Department telling TMZ they responded to a residence in Somis, California, for a medical emergency. Sources tell us the individual was Daniel, although it's unclear what the medical issue was.

The dept says the individual was assessed by firefighters and eventually transported to a nearby hospital. Sources tell us Daniel has since been released.

Drew Struzan -- the legendary artist who created hand-illustrated posters for blockbuster film classics like "Star Wars" and "Harry Potter" -- has died at 78.

Moderators of Struzan’s official Instagram posted that he died Monday, adding ... "I feel it is important that you all know how many times he expressed to me the joy he felt knowing how much you appreciated his art."

No official cause of death has been announced, though it was confirmed back in April that Struzan had been battling Alzheimer’s for some time.

Speculation about Kendall Jenner being the next Bond girl may have shaken the 007 universe, but it's all just bogus rumors, TMZ has learned.

According to an insider ... Kendall’s not in talks to play the next Bond girl, despite all the headlines ... it's just been wishful thinking by fans, kind of like what went down with Sydney Sweeney.

We’re told the next Bond flick is just starting to take shape, with Denis Villeneuve tapped to take the director’s chair.

Many stars have been paying tribute to Diane Keaton following her passing ... and her hometown of Santa Ana, California, is following suit.

Santa Ana Mayor Valerie Amezcua tells TMZ ... she will be asking for a street topper right by Santa Ana High School. She also tells us she plans on closing the next city council meeting in Keaton's honor.

Keaton graduated from Santa Ana High School in 1963 before moving to New York to start her legendary show business career.

Woody Allen paid tribute to his muse and former romantic partner Diane Keaton following the legendary actress' death Saturday.

Allen wrote ... "Unlike anyone the planet has experienced or is unlikely to ever see again, her face and laugh illuminated any space she entered."

In an essay published by The Free Press ... Allen described how he first met Keaton shortly after she moved to his native New York.

Canadian American actress Jenn Proske was in her early 20s when she played Becca Crane -- the awkward and anxious high school student, lacking joy in life -- in the comedy/horror film "Vampires Suck" back in 2010.

Jenn shared the big screen with actors Matt Lanter, Anneliese van der Pol, and Chris Riggi.

Diane Keaton’s devastated son Duke was spotted leaving her L.A. home -- just a day after the legendary actress passed away at 79.

Here are the pics -- the 25-year-old cut a lone figure as he left the house Sunday and headed to his car, clearly mourning the loss of Diane, who adopted him back in 2001.

As you know, Diane passed away the day before, and the Los Angeles Fire Department tells TMZ they responded to her home at 8:08 AM Saturday, with an ambulance taking her to a local hospital.

We all know celebs love to show up and show out every now and then ... and we wanna see if you can guess who this fabulous fashionista is!

We caught this singer-actress-producer all the way back in 2019 when she was heading into a taping of "Good Morning America" ... and although she didn't seem too talkative at the time -- she seemed to get a kick out of showing off her outfit!

1:45 PM PT -- The Los Angeles Fire Department tells TMZ ... they responded to Diane's home at 8:08 AM Saturday morning and an ambulance transported an individual to a local hospital.

Our sources tell us Diane was the one taken away in the ambulance.

Diane Keaton -- famed actress, director and producer -- has died.

The legendary Hollywood actress who starred in tons of hit movies died in California ... according to PEOPLE.

Diane's cause of death is unclear.