Short films are similar to full-length films in that they have a beginning, middle, and end, but are typically less than 40 minutes long. They are often lower budget productions created by independent directors and can be used to entertain or convey a serious message. While not as popular as in the past, short films are still shown at film festivals and online. Some filmmakers create short films for charities to help raise donations. The history of short films began in the 1910s in the US with animated and live-action comedies, though their popularity declined in the 1930s before rising again in 1955 due to Charlie Chaplin's return to short comedy films.