The Bikini Summer trilogy kicked off in 1991 with the first movie in the series Bikini Summer. In 1992 a second film was released staring Jessica Hahn, Maureen Flaherty, Melinda Armstrong, Robert Miano, and in 1997 the series was completed with Bikini Summer III: South Beach Heat
The Inspector Hornleigh trilogy kicked off in 1939 with the first movie in the series Inspector Hornleigh. In 1939 a second film was released staring Gordon Harker, Alastair Sim, Linden Travers, Wally Patch, and in 1941 the series was completed with Inspector Hornleigh Goes to It
The The Brady Bunch Movies trilogy kicked off in 1995 with the first movie in the series The Brady Bunch Movie. In 1996 a second film was released staring Shelley Long, Gary Cole, Christopher Daniel Barnes, Christine Taylor, and in 2002 the series was completed with The Brady Bunch in the White House
The Knight Rider trilogy kicked off in 1991 with the first movie in the series Knight Rider 2000. In 1994 a second film was released staring Richard Joseph Paul, Hudson Leick, Michael Beach, Don McManus, and in 2008 the series was completed with Knight Rider
The Behind Enemy Lines trilogy kicked off in 2001 with the first movie in the series Behind Enemy Lines. In 2006 a second film was released staring Nicholas Gonzalez, Matt Bushell, Keith David, Denis Arndt, and in 2009 the series was completed with Behind Enemy Lines: Colombia
The Star Wars: Droids trilogy kicked off in 1986 with the first movie in the series The Great Heep. In 1996 a second film was released staring Michel LeFebvre, Gordon Masten, Cree Summer, Anthony Daniels, and in 2004 the series was completed with Treasure of the Hidden Planet
The The 7th Voyage of Sinbad trilogy kicked off in 1958 with the first movie in the series The 7th Voyage of Sinbad. In 1974 a second film was released staring John Phillip Law, Caroline Munro, Tom Baker, Douglas Wilmer, and in 1977 the series was completed with Sinbad and the Eye of the Tiger
The Art of the Devil trilogy kicked off in 2004 with the first movie in the series Art of the Devil. In 2005 a second film was released staring Napakpapha Nakprasitte, Hataiwan Ngamsukonpusit, Akarin Siwapornpitak, Chanida Suriyakompon, and in 2008 the series was completed with Art of the Devil 3
The The Hills Have Eyes trilogy kicked off in 1977 with the first movie in the series The Hills Have Eyes. In 1985 a second film was released staring Tamara Stafford, Kevin Spirtas, John Bloom, Colleen Riley, and in 1995 the series was completed with The Hills Have Eyes III
The The Delta Force trilogy kicked off in 1986 with the first movie in the series The Delta Force. In 1990 a second film was released staring Chuck Norris, Billy Drago, John P. Ryan, Richard Jaeckel, and in 1991 the series was completed with Delta Force 3: The Killing Game
The Erotic Ghost Story trilogy kicked off in 1987 with the first movie in the series Erotic Ghost Story. In 1993 a second film was released staring Amy Yip, Chia Ling Ha, So Man, Hitomi Kudô, and in 1994 the series was completed with Erotic Ghost Story III
The The Jungle Book trilogy kicked off in 1967 with the first movie in the series The Jungle Book. In 1990 a second film was released staring Phil Harris, Sebastian Cabot, Bruce Reitherman, George Sanders, and in 2003 the series was completed with The Jungle Book 2
The Indecent Behavior trilogy kicked off in 1993 with the first movie in the series Indecent Behavior. In 1994 a second film was released staring Shannon Tweed, James Brolin, Chad McQueen, Cynthia Steele, and in 1995 the series was completed with Indecent Behavior III
