A film capacitor, comprising: a main body portion shaped in a rectangular prism, comprising dielectric films and metal films which are laminated; a pair of external electrodes (2a, 2b); and an insulating layer disposed on a surface of the main body portion, the main body portion comprising a pair of first faces (1a, 1b) which are opposite to each other in a laminating direction of the main body portion, a pair of first side faces (1c, 1d) which are opposite to each other and a pair of second side faces (1e, 1f) which are opposite to each other, the pair of first side faces (1c, 1d) and the pair of second side faces (1e, 1f) connecting the pair of first faces (1a, 1b), the external electrodes (2a, 2b) being disposed on the first side faces (1c, 1d), respectively, when a positional direction of the first side faces (1c, 1d) is defined as a first direction (x), and a positional direction of the second side faces (1e, 1f) is defined as a second direction (y), the metal films each having a plurality of first segments into which the metal films are divided by a plurality of first grooves extending in the first direction (x), when an interval between two grooves of the plurality of first grooves which are arranged adjacent to each other and are nearest the respective second side faces (1e, 1f) is designated as P, and regions of the first side faces (1c, 1d) extending from the corresponding second side faces (1e, 1f) to a point spaced away from the corresponding second side faces (1e, 1f), respectively, by a distance of less than or equal to P are defined as first regions (1c1, 1d1), the insulating layer being disposed between the main body portion and parts of the external electrodes (2a, 2b) within the first regions (1c1, 1d1), characterised in that the first segment contiguous to each of the second side faces (1e, 1f) of the main body portion is defined as an end metal film (4e, 4ale, 4a2e, 4be) and the first regions (1c1, 1d1) each include at least one first groove, and the first groove keeps the end metal film (4e, 4ale, 4a2e, 4be) and the first segment adjacent thereto separated. a main body portion shaped in a rectangular prism, comprising dielectric films and metal films which are laminated; a pair of external electrodes (2a, 2b); and an insulating layer disposed on a surface of the main body portion, the main body portion comprising a pair of first faces (1a, 1b) which are opposite to each other in a laminating direction of the main body portion, a pair of first side faces (1c, 1d) which are opposite to each other and a pair of second side faces (1e, 1f) which are opposite to each other, the pair of first side faces (1c, 1d) and the pair of second side faces (1e, 1f) connecting the pair of first faces (1a, 1b), the external electrodes (2a, 2b) being disposed on the first side faces (1c, 1d), respectively, when a positional direction of the first side faces (1c, 1d) is defined as a first direction (x), and a positional direction of the second side faces (1e, 1f) is defined as a second direction (y), the metal films each having a plurality of first segments into which the metal films are divided by a plurality of first grooves extending in the first direction (x), when an interval between two grooves of the plurality of first grooves which are arranged adjacent to each other and are nearest the respective second side faces (1e, 1f) is designated as P, and regions of the first side faces (1c, 1d) extending from the corresponding second side faces (1e, 1f) to a point spaced away from the corresponding second side faces (1e, 1f), respectively, by a distance of less than or equal to P are defined as first regions (1c1, 1d1), the insulating layer being disposed between the main body portion and parts of the external electrodes (2a, 2b) within the first regions (1c1, 1d1), characterised in that the first segment contiguous to each of the second side faces (1e, 1f) of the main body portion is defined as an end metal film (4e, 4ale, 4a2e, 4be) and the first regions (1c1, 1d1) each include at least one first groove, and the first groove keeps the end metal film (4e, 4ale, 4a2e, 4be) and the first segment adjacent thereto separated.