Sea Wolf is a replenishment upgrade to the existing stocks of Sea Wolf missiles. Vertically Launched Sea Wolf (VLSW) forms. He produced and directed the company's first picture, playing Wolf Larsen in "The Sea Wolf". "Sea Wolf" was followed by "Sea Wolf II" in 1978. "The Sea Wolf", released in 1941, was based on Jack London's novel. In Royal Navy service Sea Wolf is being replaced by Sea Ceptor. Sea Wolf will be replaced by Sea Ceptor between 2015 and 2021. "Sea wolf" is a historical epithet for sailors who engaged in piracy. Edward G. Robinson starred in "The Sea Wolf" (1941), his second film directed by Curtiz. Sea Wolf in its original guise cannot therefore be easily added to existing vessels.