All you have to do is answer this simple question!

If there's something strange in your neighbourhood, who you gonna call?

The Ghostbusters, of course!

And so, they're back this Friday, in a reboot of the original supernatural comedy.

This time, four women -- Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones -- start a ghost-catching business in New York. Directed by Paul Feig, it will release in 3D and IMAX 3D on July 29.

Before you watch the film, you can win some cool sling bags!

All you have to do is answer a simple question:

When did the first Ghostbusters movie release?