Police Academy 6: City Under Siege is a 1989 American comedy crime film starring Bubba Smith, David Graf and Michael Winslow. It was directed by Peter Bonerz and written by Stephen Curwick, based on characters created by Neal Israel and Pat Proft. The film was given a PG rating for violence and language. This was the fifth and last Police Academy sequel to be released in the year immediately following the previous installment of the series. It would take five years until the release of the following film, Police Academy: Mission to Moscow. Police Academy 6: City Under Siege was also the last film in the series to feature Bubba Smith, Marion Ramsey, Bruce Mahler, Lance Kinsey and George R. Robertson as Hightower, Hooks, Fackler, Proctor and Commissioner Hurst respectively.

Charles Aaron "Bubba" Smith was an American professional football defensive end and actor. Smith played in the National Football League (NFL) for the Baltimore Colts, Oakland Raiders, and Houston Oilers.