The The Kent Family Chronicles trilogy kicked off in 1978 with the first movie in the series The Bastard. In 1979 a second film was released staring Natalie Zea, Hayes MacArthur, Affion Crockett, Amin Joseph, and in 1979 the series was completed with The Seekers
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 Fatal Fury trilogy kicked off in 1992 with the first movie in the series Fatal Fury: Legend of the Hungry Wolf. In 1994 a second film was released staring Mark Hildreth, Peter Wilds, Jason Gray-Stanford, Lisa Ann Beley, and in 1993 the series was completed with Fatal Fury 2: The New Battle
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 Beastmaster trilogy kicked off in 1982 with the first movie in the series The Beastmaster. In 1991 a second film was released staring James Avery, Michael Berryman, David Carrera, Carl Ciarfalio, and in 1996 the series was completed with Beastmaster III: The Eye of Braxus
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
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 Sabrina, the Teenage Witch trilogy kicked off in 1996 with the first movie in the series Sabrina the Teenage Witch. In 1998 a second film was released staring Melissa Joan Hart, Eddie Mills, Tara Strong, James Fields, and in 1999 the series was completed with Sabrina, Down Under
The Major League trilogy kicked off in 1989 with the first movie in the series Major League. In 1994 a second film was released staring Charlie Sheen, Tom Berenger, Corbin Bernsen, Dennis Haysbert, and in 1998 the series was completed with Major League: Back to the Minors
The Bibi Blocksberg trilogy kicked off in 2002 with the first movie in the series Bibi Blocksberg. In 2004 a second film was released staring Sidonie von Krosigk, Marie Luise Stahl, Corinna Harfouch, Katja Riemann, and in 2014 the series was completed with Bibi & Tina
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 Santa Clause trilogy kicked off in 1994 with the first movie in the series The Santa Clause. In 2002 a second film was released staring Tim Allen, Elizabeth Mitchell, David Krumholtz, Eric Lloyd, and in 2006 the series was completed with The Santa Clause 3: The Escape Clause
