This is an archived article that was published on sltrib.com in 2013, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

It's 35 days until the start of the 2013 Sundance Film Festival — and, as in past years, this blog will lead up to the big event with trailers from some of the anticipated movies playing there.

The first "trailer of the day" is for what will likely be one of the more talked about — and most puzzled over — movies in the festival: "Upstream Color."

Here's what the Sundance programmers said about "Upstream Color" in synopsis: "A man and woman are drawn together, entangled in the life cycle of an ageless organism. Identity becomes an illusion as they struggle to assemble the loose fragments of wrecked lives."

The 50-second trailer doesn't reveal much more, except images of supreme beauty and a mysterious tone overarching the whole thing. That's to be expected from writer-director-actor Shane Carruth, whose previous Sundance entry was the 2004 time-travel movie "Primer" (which won the Grand Jury Prize and the Alfred P. Sloan Prize that year).

"Upstream Color" will play in the U.S. Dramatic Competition section of the 2013 Sundance Film Festival.

- Sean P. Means