I came to this to post the same method with turning off lights so they go toward my patio door, then I just crack the door and shoo them out. Glad to see someone else using this very fast method, generally it only takes a few minutes for the fly to decide it doesn’t want to be in the dark.
I did not care for this movie. It was poorly written, tasteless, and had gratoiuois rib elbowing nostalgia references.