When you think of Hollywood and the silver screen, you probably think of the millions of dollars it takes to make a movie and how gosh darn expensive the equipment is going into filming.

Forget lighting and editing and actors and on-set talent: cameras alone with different lenses and attachments can cost over a million dollars, and renting them out for personal use can cost at least a couple grand a week.

Quite possibly the coolest A and B cameras in the world [are] nicknamed "Death Star" and "Millennium Falcon." These two cameras were developed by Panavision specifically for director J.J. Abrams and cinematographer Dan Mindel, who used them to capture the latest installment of the Star Wars franchise, The Force Awakens… Camera: $120,000, while the lenses: $500,000 for full set (35, 40, 50, 60, 75, and 100mm) (Johnathon Paul, Premium Beat)

Now, director Steven Soderbergh, who has won an Academy Award for Best Director, a Primetime Emmy Award for Outstanding Directing for a Limited Series, and a Critics' Choice Movie Award for Best Director, has used his iPhone to shoot his latest horror-thriller, Unsane: and it's just premiered in Berlin.

"Unsane" is among around 400 films screening at the festival but it is not among the 19 movies vying for the main prize, the Golden Bear, which will be awarded on Saturday. The festival in the German capital runs until Feb. 25. (Reuters)

Unsane tells the story of a young woman who is relentlessly harassed and targeted by an aggressive stalker that texts her constantly and seems to never leave her alone. She eventually ends up trapped in a psych ward, and as the world around her denies her sanity, she can only try to figure out if this nightmare is all in her head or if the stalker is actually one of the doctors that have been treating her.

The trailer seems chilling, terrifying, and super, super disturbing (I love me a good psychological thriller!), but the biggest draw to Unsane wasn't the content; it was how it was filmed.

Anybody going to see this movie who has no idea of the backstory to the production will have no idea this was shot on the phone. That's not part of the conceit. (Steven Soderbergh, IndieWire)

Soderbergh went on to say that people often forget about the quality of the iPhone, noting that he had tried shooting with more expensive gear in the past, and that the iPhone might actually be something he would want to shoot with again and again.

People forget, this is a 4k capture. (Steven Soderbergh, IndieWire)

Will you be seeing Unsane?

In a world of expensive tech and even more expensive filmmaking, Unsane seems to be a bit of a shining light… but do you think the film is all it's cracked up to be?

I'm personally excited for the movie, but I know that might not be the case for everyone, so what do you think?

Let me know what your thoughts are in the comments below!

iPhone XS, iPhone XS Max, iPhone XR

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