Good Genes or Good Docs

Natalie Portman's always ready for the big screen!

Here's a 15-year-old version of the Academy Award-winning actress for the film "Black Swan" at a movie premiere back in 1996 (left) and 22 years later ... the Harvard graduate -- who celebrated her 37th birthday earlier this week -- looking dolled up at a music festival in Boston last month (right).

Beauty and brains.

The question is ...

Zachary Quinto's good looks are in a universe of their own!

Here's the 28-year-old version of the '24' actor at a fashion show back in 2005 (left) and 13 years later ... the 'Star Trek' star -- who just turned 41 -- in New York City earlier this week (right).

"Live long and prosper!"

The question is ...

Billy Dee Williams' good looks aren't forced!

Heres a 33-year-old version of the 'Star Wars' actor back in 1970 (left) and 48 years later ... the now 81-year-old father of two was photographed at the 'Solo' premiere in Hollywood this month (right).

"Hello ... what do we have here?"

The question is ...

Prince William's good looks are truly royal!

Here's a 17-year-old version of the Duke of Cambridge back in 1999 (left) and, 19 years later, the now-35-year-old heir to the throne taking a stroll around Windsor Castle the day before his little brother's big wedding day (right).

I do!

The question is ...

Jane Kaczmarek is one hot mama.

Here's a 37-year-old version of the "Malcolm in the Middle" mom at a movie screening back in 1993 (left) and 25 years later ... the mother of three looks better -- and blonder -- than ever at a play opening in Pasadena earlier this year (right).

She's raising the bar.

The question is ...

Will Arnett's good looks are arresting.

Here's a 29-year-old version of the "Arrested Development" star at a party back in 1999 (left) and 19 years later ... the father of two -- who turned 48 years old earlier this week -- at a convention in Las Vegas just last month (right).

Gob well done.

The question is ...

Josh Brolin's good looks are out of this world!

Here's a 15-year-old version of the 'Goonies' star back in 1983 (left) and 35 years later ... the now 50-year-old father of two was photographed at the "Avengers: Infinity War" premiere earlier this week (right).

Marvel-ous.

The question is ...

Nile Rodgers' good looks did not get lost in the music!

Here's a 27-year-old version of the 'Chic' star performing in New York City back in 1979 (left) and 38 years later ... the now 65-year-old musical man onstage during his 2018 Coachella Weekend 1 performance in Indio, CA (right).

Freak out!

The question is ...

David Byrne's good looks are burning down the house!

Here's a 27-year-old version of Talking Heads singer performing back in 1980 (left) and 38 years later ... the now 65-year-old solo singer who took the stage at Coachella last night (right).

He's the same as he ever was.

The question is ...

We're clueless as to how Paul Rudd's good looks just keep getting better!

Here's a 28-year-old version of the "Knocked Up" star at a movie premiere back in 1997 (left) and 21 years later ... the "Ant-Man" actor -- who just celebrated his 49th birthday -- at a benefit in New York City just last month (right).

'I Love You, Man.'

The question is ...

Simon Pegg's good looks are out of this world.

Here's a 34-year-old version of the "Star Trek" actor showing off his blonde locks in 2004 (left) and 14 years later ... the now 48-year-old star is seen at a premiere for his new film "Ready Player One" earlier this week (right).

He's got that hot fuzz.

The question is ...

Keegan-Michael Key's good looks are truly no joke!

Here is a 34-year-old version of the "Key & Peele" star at a Hollywood party back in 2005 (left) and 13 years later ... the comedian -- who celebrated his 47th birthday this past week -- at a party in Beverly Hills earlier this month (right).

"Why Him?"

The question is ...

Queen Latifah's good looks are bringing down the house!

Here's a 23-year-old version of the multi-talented lady backstage before a performance in 1993 (left) and 25 years later ... the "Girls Trip" star - who turns 48 today - at a New York City gala just last month (right).

Time's been good to mama!

The question is ...

Robin Thicke's good looks don't need any blurring.

Here's a 25-year-old version of the singer/songwriter with long locks in New York City back in 2002 (left) and 16 years later ... the now 41-year-old new father rockin' a faux hawk in Tustin, California earlier this year (right).

No lines here.

The question is ...

Christopher Plummer's good looks are money!

Here's a 36-year-old version of the 'Sound of Music' star back in 1965 (left) and 52 years later ... the now 88-year-old 'All the Money in the World' actor -- who set the record for being the oldest celeb to receive an Oscar nomination -- at an event earlier this year (right).

It's a Trapp!

The question is ...

Floyd Mayweather's good looks are also undefeated!

Here's a 21-year-old version of the fresh-faced professional boxer after winning a fight back in 1998 (left) and 20 years later ... the champ -- who celebrated his 41st birthday earlier this week -- at the All-Star Game in Los Angeles (right).

Knockout.

The question is ...