Tribute (1980). Nurse Gale Garnett disrobes and bares her breasts in front of terminally ill Jack Lemmon.
You've seen Guy Standeven in something because the man was in everything.

The 1978 Crown International high school comedy Coach.
You've seen Guy Standeven in something because the man was in everything.

Just One of the Guys
Doc Hollywood
Legend of Billie Jean
Back To School
Deja Vu
L A Story
Making The Grade
Brainstorm
Dreamscape
Chaplin
Calendar Girls
The Deep
Gotcha
The Philadelphia Experiment
Real Men
Streets of Fire
Woman in Red

A Cinderella Story (Hilary Duff version) the step mom got a boob job and it was implied by Rhonda. And it's PG

And Ragtime is a pretty long sequence, too!
Agreed! I've often wondered if it squeaked by with a PG because Elizabeth McGovern had such small breasts. Maybe they thought we wouldn't notice.

And Ragtime is a pretty long sequence, too!

Hair (1978), Irreconcilable Differences (1984), How to Beat the High Cost of Living (1980), Ragtime (1981), The Stepford Wives (1975), and Diana Ross flashes a quick nip in Mahogany (1975).

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The Beastmaster

Also don't forget the opening sequence to most any Bond movie made in the 80s (and 70s). Sure they keep it dark, but you could clearly see lots of stuff in some of the opening sequences.
Also in addition to stuff mentioned above Jaws. And I know there were more.

The original Clash of the Titans from the 1980's had some topless scenes in the beginning when Perseus was being raised and it was PG. Also, the movie Dragonslayer had full rear female nudity (though it ended up being essential to the plot) and it was also PG - and a Disney movie (not animated) if that helps.
Meantime, good luck with your quest!

Unfortunately, most of the "boobage" has been edited out of the DVD release of
Hawaii
.
There are 8.2 billion people in the world. 8.19 billion of them have never heard of and don't give a fuck about Charlie Kirk. Get over it.

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Sheena
Howard the Duck
Smokey and the Bandit Part 3
They Call Me Bruce?
They Still Call Me Bruce
Clash of the Titans
Dragonslayer
Hawaii

When I watched it on the Sundance network it showed a R rating.

Trail of the Pink Panther

sorry got nothing, but I guess its the way they are displayed, those boobies were about admiration (from girls) not sexual, hence rating.
In Airplane, they were comedy relief and not referenced sexually either.
Titanic, they were for "art".
Just like you if not for sex purposes, I don't remember them in movies but I would have at the time this was released seeing the star, Molly, was a girl I did not look twice at. I think only girls found her attractive (like Cate Blanchet)

Baby: Secret of the Lost Legend, although this is tribal nudity.

That probably qualifies, even though it's not technically rated, since it aired on network TV. It's not as much fun when it's a technologically unadvanced civilization, as opposed to soapy suds.

I dont know if this qualifies as a PG movie, but the made for TV miniseries Roots had boobies. I was in grammar school at the time and they were the first boobies I recall seeing on TV. It was funny because the women supposedly never wore anything up top yet they had bikini top tan lines.

Titanic is PG-13.

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Romeo & Juliet (1968) I believe showcased male and female ass as well as female boobage and it was rated G.
"Barry Lyndon" features both violence and nudity on a several occasions yet is rated PG.
"Where's your spark now?"

Your use of the term "boobies" to describe what adults refer to as "tits" indicates to me that you're probably too young to be looking at them.
There are 8.2 billion people in the world. 8.19 billion of them have never heard of and don't give a fuck about Charlie Kirk. Get over it.