Goofs

After Parker pulls her frozen hand off the safety bar, her skin remains stuck to the metal. Later in the film, the skin is no longer present.

The snowstorm during the first night on the lift is depicted as being heavy enough to bury the equipment the protagonists threw down to the ground, but subsequent establishing shots of the ski resort show the mountain covered in tracks in the snow left behind by skiers and boarders previously.

Before the second time Joe climbs up to get to the overhead cable, the sky is clear and sunny. In the next shot, as he starts climbing, the sky is overcast and it's snowing.

Parker's position relative to Joe changes between shots when they first talk at the lodge.

After she touches her cheek scab and it peels away, in the next scene it is as it was before.

Ski resorts send "liftees" to inspect the lifts at the end of every shift to prevent this very scenario from happening.

Although the protagonists are supposed to be freezing badly none of them cares to completely close their coats.

One of the reasons ski resorts are closed more than they are open is for maintenance. Had this been a real scenario, the longest the trio would be stuck on the lift would be until the next morning when maintenance crews came in to perform preventative maintenance on the ski lift, and groom the mountain for the upcoming weekend's visitors.

It is so cold that frost has formed on the characters, and they are freezing. Yet when they are talking and breathing, no vapor or smoke is seen.

In that situation, never should you jump without a snowboard if you have one. It displaces weight like snow shoes and there'd be way less chance of breaking feet, legs, or hips. It'd hurt still, but much less. You'd also want to use momentum to swing yourself inward under the lift where snow is deeper. Finally, if there's a storm coming, you'd want to wait absolutely just shy of hypothermia so some cushioning snow has time to accumulate.

At the 34 minute mark and for several minutes thereafter, icicles are seen on the chairlift, both above the characters' heads and hanging down the sides of the chair. These stalactite-type of icicles are formed from water dripping then refreezing in the cold air. They don't arbitrarily appear simply due to a storm passing through.

When Joe is climbing down the wire to the next ski lift, the next shot is of the wolves running and waiting for him underneath. One of the wolves is visibly dragging a leash through the snow.

She's got frostbite on her face and more coming yet her jacket flaps are open and her hats isn't pulled over the frostbite area, not to mention her hood isn't cinched.