What are you, some kind of troll or something? I think you already know that an X-rated movie is not a children’s movie.
I remember crying inconsolably during a Charlie Brown TV Movie. I think it was called Snoopy Come Home. It was about Snoopy trying to find his original owner (I think) and he kept encountering “No Dogs Allowed” signs. Whenever he ran into one of these signs a kind of creepy sing song voice sang “No Dogs Allowed.” I cried and cried because I was a little bit afraid of that voice but mostly I was just incredibly sad for Snoopy.
I think other movies scared me and made me sad (Dumbo, Bambi, etc.) but the Snoopy Come Home movie is the only one I remember that had me snot-running-down-the-nose crying. Even now I feel bad for the injustice poor Snoopy had to suffer through.
How about “Rikki-tikki-tavi”?
It was a made-for-TV film in the 70’s by Chuck Jones based upon Kipling’s story of growing up in India a hundred years ago or so. Those two friggin’ cobras (“Naag” and “Naagina”) that were hell-bent on killing the humans had me hiding behind the couch EVERY year.