I cannot add a Movie Connection to Killing Me Softly: The Roberta Flack Story (tt3805928).

I am having trouble with this Movie connection addition. I tried to add that Killing Me Softly: The Roberta Flack Story (tt3805928) REFERENCES the 1971 film Play Misty for Me (tt0067588) because CLIPS of the film are SHOWN in the documentary.

After my first attempt (#220923-172224-643000) was declined, I tried a second time (#230331-033539-363000) but added "The documentary about Roberta Flack shows clips from Play Misty for Me because having The First Time Ever I Saw Your Face in its soundtrack made her famous" as an explanation.

Both additions were declined for the same reason:

"Unable to verify. Your contribution has been declined. We have been unable to verify your contribution. Unfortunately we were unable to accept your submission as we were unable to verify the information provided."

Could you please let me know what I am doing wrong?