What is "buddy film"

alt. (context UK English) A film where two people of the same sex are paired as the principle characters. n. (context UK English) A film where two people of the same sex are paired as the principle characters.

The buddy film is a film genre in which two (or on occasion, more than two) people of the same gender (historically men) are put together. The two often contrast in personality, which creates a different dynamic onscreen than a pairing of two people of the opposite gender. The contrast is sometimes accentuated by an ethnic difference between the two. The buddy film is commonplace in American cinema; unlike some other film genres, it endured through the 20th century with different pairings and different themes.