Hiroshi Saito

1991

• [ ] Playtime Never Ends (Screenplay) 

1993

• [ ] Kokkai e ikô! (Screenplay) 

1994

• [ ] Torarete Tamaruka!? (Screenplay) 

1996

• [ ] Secret Waltz (Writer) 
• [ ] That's Cheating! The Biggest Plan in History? (Writer) 

1997

• [ ] Sharan-Q no enka no hanamichi (Writer) 

1998

• [ ] Samurai Fiction (Screenplay) 

1999

• [ ] Secret (Screenplay) 
• [ ] The Exam (Screenplay) 

2001

• [ ] Red Shadow (Writer) 

2003

• [ ] Resurrection (Screenplay) 
• [ ] Rockers (Screenplay) 
• [ ] 4Teen (Writer) 
• [ ] Dragon Head (Screenplay) 

2005

• [ ] Tetsujin 28: The Movie (Screenplay) 

2006

• [ ] Blue Song - Proud of My Voice (Writer) 

2007

• [ ] Life Tengoku de Kimi ni Aetara (Screenplay) 

2008

• [ ] The Glorious Team Batista (Screenplay) 
• [ ] 252: Signal of Life (Screenplay) 
• [ ] Your Friend (Screenplay) 

2009

• [ ] April Bride (Writer) 
• [ ] The Triumphant Return of General Rouge (Writer) 

2014

• [ ] I Just Wanna Hug You (Writer) 

2015

• [ ] Her Granddaughter (Screenplay) 
• [ ] The Lion Standing in the Wind (Writer) 

2017

• [ ] Kiseki: Sobito of That Day (Screenplay) 
• [ ] The Miracles of the Namiya General Store (Screenplay) 

2019

• [ ] Samurai Marathon (Screenplay) 

2021

• [ ] What Happened to Our Nest Egg!? (Screenplay) 

2022

• [ ] Ghost Book (Novel) 
• [ ] Haw (Screenplay)