I do this occasionally, but not due to procrastination. I'm very much a film buff and put a ton of effort into film watching, but the same goes for articles and writing like humanodon noted below. It's more a matter of frame of mind.

In this specific scenario, I'd watch the low-brow stuff first as well, so I can have the lasting impression left for the end. I'm not muddying the experience by watching those after watching something good. I'm also more able to because I have less to do afterward, i.e., I can devote myself fully to the good film since I've gotten other things out of the way. This is the same for reading and writing as well: get the easy, small, simple things out of the way first, devote yourself to something else, prepare your mind for it.

Lately I've been planning to watch Marketa Lazarova as I've finally gotten the Criterion blu-ray release, but this week I've been high energy on one day, had lots of homework to do on others, and was sick the last two days. None of these conditions are conducive to my viewing the film properly.