Film, method for manufacturing film, optical filter, layered body, solid-state imaging element, image display device, and infrared sensor

Provided are a film having excellent heat resistance and a method for manufacturing the film. Also provided are an optical filter, a layered body, a solid-state imaging element, an image display device, and an infrared sensor. A film including dye aggregates and a resin, the average particle diameter of the dye aggregates being 30-450 nm.