Halloween has passed, but Paramount Pictures wants to give you a treat for putting on a creepy face. In promotion of its horror smash hit Smile 2, Paramount Pictures has set up a website where you can watch some of the film for free if you shoot the biggest smile into your computer’s camera.

Paramount Pictures has posted the first seven minutes of Smile 2 online. But fans can only watch the footage if they smile for all seven of those minutes. First you need to click through to the dedicated site, enter your age to prove you are old enough to watch, and make sure your webcam is enabled.

You don't literally have to have a big, toothy, creepy grin on your face for all seven minutes - a smirk should do it - but the facial recognition is pretty sharp and is lightning

To watch the preview, you have to first give Paramount access to your webcam and then smile the entire time it plays. Yep, you read that right; you have to grin at your computer for the entire seven minutes.

You can watch a seven-minute free excerpt of Paramount’s new horror flick Smile 2 online - but the grin you’ll need to plaster on your face is not included. That’s right: The studio has pulled out yet another ad stunt,

Busted! So to see what happens, you have to grin—fortunately, your expression doesn’t have to be as demonically exaggerated as the afflicted characters in the Smile movies, but it’s got to be somewhere between “polite listener” and “beauty pageant contestant.

Paramount will let you watch the first 7 minutes of Smile 2, but you have to smile into your webcam during the whole clip