Dim the lights, close the blinds, drag an air mattress or big cushions onto the floor and add lots of blankets before snuggling down together with some homemade popcorn and watch your favourite movies together. If you have more than one child in the house, take it in turns to choose the film or pick a theme and try to think of films around it, for example films about dogs or about summer or superheroes (always a firm favourite!)
If traditional movie nights have come to feel a bit stale, have everybody purposely pick the worst movie they can find and have a night of fun laughing at those and enjoying their terrible premises!