If you're in or close to a decent sized city, there are absolutely companies that will rent you a projector and screen. Speakers if you need them. And potentially labor to set everything up if you need it. You will probably also need to secure and pay for insurance to cover any damage in addition to rental/labor costs.
as others have suggested, you may also be able to rent out a screen in a movie theater.
another option might be a local hotel with event spaces, most will have an A/V department, and may have projectors and screens in their in-house inventory, or will know where to get them.
none of these are going to be especially cheap, if budget is a concern, you can buy a decent projector for a few hundred bucks, or a medium to fair projector for under 200, maybe under 100.