Should I lend my projector for a community film night before screening permission is checked?

The draft poster said, 'Free film night. Everyone welcome.' My neighbour asked me to bring my projector and log into my streaming account. When I asked about permission to show the film, she said, 'We're not selling tickets.'

We're organising this in a community hall in England. I offered equipment because I liked the idea of neighbours meeting over a film. I hadn't offered my account, and I assumed someone handling the hall booking would check the screening arrangements. The hall volunteer says he only booked the room.

The poster hasn't gone out yet. My neighbour thinks I'm adding paperwork to an evening that should be simple. I'd like it to happen, but nobody can tell me who has checked what.

How do I keep helping while making it clear that the film and the way we show it need to be settled before my equipment becomes the plan?