Frank Herbert wrote in Dune, "... the first step in avoiding a trap is knowing of its existence." I'm not sure if he was speaking of an IRS audit, or a movie like this.

From its trailer, I would classify Vertical Limit as what I call a dumb movie. No one either in the movie, or involved in its production knows what they are doing. Here's the premise. Dumb people go up a mountain and get hit with an avalanche. They knew this was a bad idea, and they did it anyway. Dumb! One of the dumb people has a brother back at base camp. He's also dumb and wants to go after her with a helicopter and bottle of nitro. There are two very dumb things here. They are the helicopter and the nitro.

First, helicopters have relatively low operational ceilings. The chopper has a snowball's chance of being able to actually fly that high, at least in the real world.

Second, nitro doesn't blow up when frozen. High altitude and lots of snow means frozen to me, and yet in the trailer the nitro blows! In fact that's how they transports the stuff, frozen. So if these guys really though Sis could use some nitro, they would want it to be frozen. But then, they are dumb people in a dumb movie.

I'm not buying a ticket. If you do and have to gnaw off your own paw to get out of this trap, don't blame me!