Caren Spruch, a PP honcho, tells THR ... "As film and TV shapes many people’s understanding of sexual and reproductive health, it’s critical these depictions accurately portray women’s real decisions and experiences."

She's mostly talking about the director, Andrew Dominik, and his depiction of Marilyn's fetus(es) -- which look fully formed in the movie, and which actually talk at one point.

Spurch goes on to say ... "Planned Parenthood respects artistic license and freedom. However, false images only serve to reinforce misinformation and perpetuate stigma around sexual and reproductive health care. Every pregnancy outcome -- especially abortion -- should be portrayed sensitively, authentically and accurately in the media."

She finishes with this ... "It is a shame that the creators of Blonde chose to contribute to anti-abortion propaganda and stigmatize people’s health care decisions instead."

For those who haven't seen it yet -- Ana, playing Marilyn, is shown as being preggo three different times ... and two of those end in nightmare-like, horrific forced abortions against her will and the third ends in a miscarriage. MM is shown as wanting to be a mother throughout the film, but forces outside her control strong-arm her into losing the babies.

Dominik, for his part, has defended his depictions of the baby stuff ... saying the feelings surrounding this are only heightened because of Roe v Wade, adding ... "no one would have given a s*** about that if I’d made the movie in 2008, and probably no one’s going to care about it in four years’ time. And the movie won’t have changed."

The movie has garnered a lot of controversy for a variety of reasons. But on this particular issue ... we should note, the whole thing is fiction -- including how Marilyn's pregnancies came to end, or how she may or may not have felt about any them. She is said to have miscarried in real life at least three times during her marriage to playwright Arthur Miller.