Mississippi Grind is a 2015 American comedy-drama film written and directed by Anna Boden and Ryan Fleck. It stars Ben Mendelsohn, Ryan Reynolds, Sienna Miller, Lio Tipton, Alfre Woodard and Robin Weigert. The film was released by A24 on September 25, 2015.

Anna Boden and Ryan K. Fleck are an American filmmaking duo. The duo rose to prominence for their work on the 2004 short film Gowanus, Brooklyn, which earned the Grand Jury prize at the Sundance Film Festival. They went on to collaborate on the Academy Award-nominated film Half Nelson. Their film Sugar (2008) was honored as one of the Top 10 for 2009 at the American Film Institute Awards; and one of the Top Independent Films at the National Board of Review Awards 2009. They are best known for writing and directing Captain Marvel, which grossed over $1 billion and is one of the highest-grossing films of all time; which made Boden the first woman to direct a live-action movie that has grossed $1 billion.