A process cartridge (250, 350) detachably mountable to a main assembly (100, 401) of an electrophotographic image forming apparatus, the main assembly including a first movable force application member (261, 361) and a second movable force application member (263, 360), the process cartridge comprising: an electrophotographic photosensitive drum (230, 330); a developing roller (242, 342) for developing an electrostatic latent image formed on the electrophotographic photosensitive drum; a drum unit (231, 331) including the electrophotographic photosensitive drum; a developing unit (241, 341) including the developing roller and movable relative to the drum unit between a contact position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spaced position in which the developing roller is spaced from the electrophotographic photosensitive drum; and a force receiving member (277, 370) including (i) a first force receiving portion (277a, 370a), provided at one end portion of the force receiving member and capable of receiving a first force from the first force application member, (ii) a second force receiving portion (277b, 370b) (ii-i) provided at the other end portion of the force receiving member, (ii-ii) movable toward a projected position in which the second force receiving portion is projected outwardly of the developing unit from a stand-by position which is retracted from the projected position by movement of the first force receiving portion caused by the first force and (ii-iii) capable of receiving a second force from the second force application member to move the developing unit from the contact position to the spaced position when taking the projected position and a spring (298; 370d) for urging the second force receiving portion toward the stand-by position. an electrophotographic photosensitive drum (230, 330); a developing roller (242, 342) for developing an electrostatic latent image formed on the electrophotographic photosensitive drum; a drum unit (231, 331) including the electrophotographic photosensitive drum; a developing unit (241, 341) including the developing roller and movable relative to the drum unit between a contact position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spaced position in which the developing roller is spaced from the electrophotographic photosensitive drum; and a force receiving member (277, 370) including (i) a first force receiving portion (277a, 370a), provided at one end portion of the force receiving member and capable of receiving a first force from the first force application member, (ii) a second force receiving portion (277b, 370b) (ii-i) provided at the other end portion of the force receiving member, (ii-ii) movable toward a projected position in which the second force receiving portion is projected outwardly of the developing unit from a stand-by position which is retracted from the projected position by movement of the first force receiving portion caused by the first force and (ii-iii) capable of receiving a second force from the second force application member to move the developing unit from the contact position to the spaced position when taking the projected position and a spring (298; 370d) for urging the second force receiving portion toward the stand-by position.