All the obits I’ve read for Ebert mention the fact that he was the first film critic to win a Pulitzer Prize, but none mention for what exactly. I always thought Pulitzers were awarded for specific pieces of work, rather than broad overviews of a body of work. So which of Ebert’s review or essay garnered the win? I also would have thought a single movie review might be a little short to be considered for such a major award. Was it possibly an entire book of reviews that got awarded?
It was the 1975 award for criticism (they award one every year, usually goes to art or music critics) and it was for his body of work in 1974.
So it wasn’t for the *Valley of Dolls *screenplay? 
I always thought Ebert’s collaboration with Russ Meyer made him more human. Ebert liked the big titties just as much as Russ did. They worked together on several of of Russ’ soft core projects.
They’re both gone now. Russ died in 2004. Roger in 2013.
Was that why he ate all those cheetos?
Here’s a list of all the winners of the Pulitzer Prize for Criticism:
The prize has gone to people who write about books, movies, television, art, fashion, music, dance, automobiles, photography, architecture, media, and restaurants. The award is given for the entire body of the writer’s work over the past year. One interesting thing to note is that The Washington Post has won the most awards - nine, or ten if you count Jonathan Yardley who moved from the Star to the Post almost immediately after winning the prize because the Star folded. You’d think that a paper in D.C. would be more known for winning for its political coverage, but it actually does better at arts criticism. Full disclosure: Mike Dirda is a friend of mine.
BEYOND the Valley of the Dolls.
/nitpick
I’m eternally amused by the fact that Ebert (with Meyer) worked on the uncompleted Sex Pistols film “Who Killed Bambi?”