This minimalist teaser for Ryan Reynolds’s Buried takes place almost entirely in the dark, with only a few seconds illuminated by a flickering lighter. Yet those few seconds should be more than enough to remind you just how extremely jazzed you are not to be buried alive, in case you had forgotten. The film, out in October, will have longer trailers, but since all 94 minutes take place inside this same coffin, with Reynolds as the only actor, they will likely be more of the making-it-very-hard-for-you-to-breathe same.