The young ones love playing outdoors, and have an immediate attraction to big and bright screens. The passion kids hold for playing and watching movies makes this activity an instant favorite and pretty much a guaranteed success. It’s also very easy to arrange if you have a portable projector, and additional costs are low. All you need are cardboard boxes to stand in for cars (kids love sitting in cardboard boxes), paper plates for headlights, and maybe toy steering wheels if you can find those. There are ways to upscale the experience if you wish to invest more in it. As for the surface onto which you’ll project the movie, a wall or garage door will do just fine, and if you’re in the backyard those should be readily available. We’re not trying to assume that you have a portable projector or a projector in general. But portable projectors are really awesome for backyard birthdays and similar activities. They certainly beat trying to push your 75” TV from the living room to the backyard without breaking the poor thing.
For the movie night, you can go the whole nine yards and create the cineplex vibe for the children, many of whom may not know what a movie theater is, sadly. So you can have parents play the role of ushers, maybe print out tickets with stubs, and certainly have a little concession stand where kids get movie theater candy, drinks, and popcorn.