The Teenage Mutant Ninja Turtles (live action films) trilogy kicked off in 1990 with the first movie in the series Teenage Mutant Ninja Turtles. In 1991 a second film was released staring Paige Turco, David Warner, Michelan Sisti, Leif Tilden, and in 1993 the series was completed with Teenage Mutant Ninja Turtles III
The Trilogy of Imagination trilogy kicked off in 1981 with the first movie in the series Time Bandits. In 1985 a second film was released staring Jonathan Pryce, Robert De Niro, Katherine Helmond, Ian Holm, and in 1988 the series was completed with The Adventures of Baron Munchausen
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 Dollars Trilogy trilogy kicked off in 1964 with the first movie in the series A Fistful of Dollars. In 1965 a second film was released staring Clint Eastwood, Lee Van Cleef, Gian Maria Volonté, Mario Brega, and in 1966 the series was completed with The Good, the Bad and the Ugly
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 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 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 Re-Animator trilogy kicked off in 1985 with the first movie in the series Re-Animator. In 1991 a second film was released staring Jeffrey Combs, Bruce Abbott, Claude Earl Jones, Fabiana Udenio, and in 2003 the series was completed with Beyond Re-Animator
The The Naked Gun trilogy kicked off in 1988 with the first movie in the series The Naked Gun: From the Files of Police Squad!. In 1991 a second film was released staring Leslie Nielsen, Priscilla Presley, Ricardo Montalban, George Kennedy, and in 1994 the series was completed with Naked Gun 33?: The Final Insult
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 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 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
