Ralph Macchio in Karate Kid
My password is password

Better Luck Tomorrow (2003), with that Asian dude from Harold and Kumar.
A lot of the cast were in their late 20s/early 30s when they were playing high school kids.
R.I.P. Brittany Murphy (November 10, 1977-December 20, 2009)

James Dean was 24 and Julie Harris was 30 when they played Cal and Abra in East of Eden.
Harris played 12-year-old Frankie in The Member of the Wedding, at the age of 27.
And This, Too, Shall Pass Away

Splendor in the Grass
Inside Daisy Clover
If we take the time to see with the heart and not with the mind, we shall see that we are surrounded completely by angels ~ Carlos Santana

West Side Story

Michael Cudlitz ( D3 The Mighty ducks )

The Blob (1958)
Steve McQueen was 27 and Anita Corsaut was 24.
And This, Too, Shall Pass Away

She just kept flunking and had to repeat high school for a lot of years
If we take the time to see with the heart and not with the mind, we shall see that we are surrounded completely by angels ~ Carlos Santana

This!
My password is password

Stockard Channing always stands out to me because she looked so old in that movie lol
Hey Diddler, Diddler….the cat and the fiddler LOL

If we take the time to see with the heart and not with the mind, we shall see that we are surrounded completely by angels ~ Carlos Santana

lol
Are you okay?

Leave it to Barbra thinking she can not only pass for a teen, but that she's believable as a boy
If we take the time to see with the heart and not with the mind, we shall see that we are surrounded completely by angels ~ Carlos Santana

Joyce Hyser (27) - Just One of The Guys
Joyce was 29 actually. Imdb had her listed as being born in 56 ever since the 90s.
Tell you what…When I send my ex-wife her money…you can lick the stamps.

Shannon Elizabeth was Paul Walker's age when she was in American Pie.
R.I.P. Brittany Murphy (November 10, 1977-December 20, 2009)

Paul Walker (26) - Varsity Blues
Joyce Hyser (27) - Just One of The Guys
Clayton Rohner (27) - Just One of The Guys
Rachel McAdams (26) - Mean Girls
Kevin Bacon (25) - Footloose
Lori Singer (26) - Footloose
Michael Tucci (31) - Grease
Jamie Donnelly (30) - Grease
Olivia Newton-John (29) - Grease
Jeff Conaway (27) - Grease
Barry Pearl (27) - Grease
Didi Conn (26) - Grease
Jennifer Grey (26) - Dirty Dancing
Eric Stoltz (25) - Some Kind of Wonderful
Lea Thompson (25) - Some Kind of Wonderful
Craig Sheffer (26) - Some Kind of Wonderful
Elias Koteas (25) - Some Kind of Wonderful
Keanu Reeves (25) - Bill and Ted's Excellent Adventure
Matt Damon (27) - Good Will Hunting
Winona Ryder (28) - Girl, Interrupted
Gabourey Sibide (25) - Precious
Emma Thompson (36) - Sense and Sensibility
Barbra Streisand (41) - Yentl
Are you okay?