How can I retrieve a deleted video on my iPhone?

"Deleted video by accident: Deleted my video by accident and I would like to retrieve it. I just now deleted it."

-------

Recovering Deleted Videos:

Where was this videos deleted from?

A. Photos App:

If this was in the Photos app, then look in the folder called Recently Deleted.

B. iTunes Library:

If this was in the iTunes library, then it has now become hidden. You'll need a computer (More or PC) to unhide it. Go here: Hide and Unhide Music, Movies, TV Shows, Audiobooks, and Books - Apple Support

C. Removed from the iTunes Library:

Sometimes, Apple removes item from the iTunes library, and it never becomes accessible again, despite having purchased it. It all has to do with licensing between Apple and the Movie Studio.