The cast credits (shown above a wintry Alaska blizzard scene) - with only technical and production categories, uniquely excluded any mention of the acting cast members (a group of mostly unknown performers).Realistic stunts (without stuntmen o double for Keaton), uncontrived, free-flowing set-pieces, non-stop motion, and a preoccupation with authenticity make parts of the film a visual history of the American Civil War, with each shot looking like a Matthew Brady photograph.Back at the cabin of Trent""s parents, Clay found himself at its door during his search for Whitney, where Jenna was helpful and friendly to him, and invited him in for a drink.Logan stressed: "We""ve got to do this, Sarah.It""s our only hope." Sarah then noticed Major Cooper""s uniform, and deduced that the recently-deceased commander was one of the faceless corpses beneath a sheet on an operating table, with only his brain stem (attached to electrodes) exposed above his body.