Ryôta Koyama

1997

• [ ] Fireworks (Grandson Visiting Temple (uncredited)) 

2000

• [ ] Ju-on: The Curse (Toshio Saeki) 
• [ ] Ju-on: The Curse 2 (Toshio Saeki) 

2014

• [ ] Broadcast Dekinai Forbidden Spirit Video (????) 
• [ ] Broadcast Dekinai Forbidden Spirit Video 3 (????) 
• [ ] Broadcast Dekinai Forbidden Spirit Video 2 (????) 
• [ ] Broadcast Dekinai Forbidden Spirit Video: The Movie (????) 

2019

• [ ] The Flat Sum (Director)