The following is a summary of Southern California-related business litigation developments during the week of April 26:

Orion Pictures Sued Over Plot in “Back to School”: Orion Pictures was sued in Los Angeles Superior Court Monday by a husband-and-wife screenwriting team who claim that they wrote the basic plot for the 1986 movie “Back to School.” George and Elizabeth Gage of Telluride, Colo., claim that they submitted a screenplay called “Second Season” to Orion in 1979. Rodney Dangerfield, who starred in the film, director Alan Metter and 11 others also were named. (Filed April 2, 1990. Case No. C757058)