A documentary about a
Star Wars costuming group who do charity events, things turn for the worst when the founder's daughter is diagnosed with terminal cancer.
I must admit I do enjoy these fan made documentaries, most of them try to portray their extreme fandom in a positive light ( and often fail ) but at least they're not hurting anyone ( other than perhaps themselves ) and in this case they actually manage to do something positive.
If this sounds like your type of film it's well worth a watch and it's better than most similar films.