A summary of Southern California-related business litigation developments during the past week.

Costner Sues Video Firm: Actor Kevin Costner and Universal Pictures Inc. filed suit in U.S. District Court in Los Angeles on Monday charging a video firm with trying to profit from “Field of Dreams,” a hit movie in which Costner starred. The suit said Prism Entertainment Corp. is distributing videocassettes of a 1985 film, “Chasing Dreams” in which Costner played a minor role, by linking it with “Field of Dreams.” Costner and Universal seek to alter the marketing plan and collect profits from the sale of Prism’s videocassette. (Filed Feb. 5, 1990, Case No. CV 900580 WMB)