Yeah, it's one thing when someone requests a scene from an old TV show or a movie from 30 years ago, there aren't going to be any movie companies setting a pack of lawyers onto us about that. But another when it's a recent movie that was recently released on DVD.
Then again, if someone happened to own the film on DVD anyway, it wouldn't cost them anything, and if it were only a short 2 or 3 minute segment they might get away with that.
It might be considered "fair use" since it is not for profit, not a significant proportion of the original work, and unlikely the have any affect on the market value of the original work, not many people would buy the DVD just for the quicksand scene, perhaps one or two people in the whole world. Film reviews, parodies, academic works etc are allowed to use a small prortion of a copyrighted work, without asking for the copyright holder's permission.
Then again, the 2 or 3 minute clip quicksand scene isn't for a review or criticism or for education purposes, just for our personal entertainment, so the "fair use" argument is a bit tenuous.

Perhaps if someone dubbed over the top of it and reviews it's quality as a quicksand scene..!