TODAY | July 19, 2013
>> great way to beat the heat during a hot summer weekend like this go to a movie theater but have you noticed it's harder and harder to find g-rated movies. what's going on?
>> reporter: released this summer, "monsters university" is in a class of it's own. like other blockbusters out now, this flick is for the kids but it's the only release so far this year that's actually rated g.
>> bottom line , g-rated movies make less money than pg and pg-13 rated movies.
>> reporter: and money talks . from 1995 to 2012 just 276 of the nearly 7,000 pie tofeature films released were rated g.
>> if you can create a pg rated movie that will afeel to young people as well as old people you'll get a much larger audience.
>> reporter: but family friendly movie goers shouldn't be scared off. the marquee is still filled with safe bets. what's changed over the years is our standards.
>> what happens in an r movie would have gotten in an x when the ratings first started. what happens in a pg-13 would have gotten an r before.
>> a few decades ago a g-rated film would clean up at the box office but nowadays the youngest movie goers expect a little more.
>> what's more experts say hollywood is blurring the ratings line making pg the new g.
>> culture has become a little bit more tolerant of more explicit scenes, language, story lines et cetera .
>> reporter: but g isn't gone just yet.
>> this isn't good-bye.
>> it just may be a little harder to find. nbc