SM2 or SM-2 may refer to: Spider-Man 2, the second Spider-Man film released in 2004 Superman II, the second Superman film released in 1980 Scary Movie 2, the second Scary Movie film released in 2001 Spiritual Machines 2, the Our Lady Peace album set for release in 2021 VR Class Sm2, a type of commuter train in Finland SM2, the SM postcode area covering Belmont, South Sutton and East Ewell in England Pindad SM2, an Indonesian general purpose machine gun Standard Missile 2, either of two US missiles: RIM-66 Standard (SM-1MR/SM-2MR), a medium-range surface-to-air missile, the successor of the RIM-24 Tartar missile RIM-67 Standard (SM-1ER/SM-2ER non-VLS capable), an extended range surface-to-air missile, the successor of the RIM-2 Terrier missile SM-2, Royal Navy Second Submarine Squadron (motto: "Second to None") Hunter-Killer boats based in HM Naval Base Devonport Song Meter SM2, a bird monitoring recorder from Wildlife Acoustics PZL SM-2, a Polish light utility helicopter also known as the WSK SM-2 SM-2 (algorithm), one of the computer algorithms used in SuperMemo SM-2, a research nuclear reactor at RIAR Super Mario Bros. 2, a 1998 Nintendo Entertainment System game sm² (also known as Surrealism 2), an unreleased mod based on the Modern Warfare 2 game engine Call of Duty: Modern Warfare 2 SM2, a Chinese signature and encryption algorithm, see SM9 (cryptography standard).