On a Wednesday Night in Tokyo
- Year:
- 2004
- Director:
- Jan Verbeek
Germany
Once Again
- Year:
- 2019
- Director:
- Kanwal Sethi
Once a Great Lady
- Year:
- 1934
- Director:
- Gerhard Lamprecht
Once Always
- Year:
- 2017
- Director:
- Susanne Boeing
Once I Dreamt of Life
- Year:
- 2014
- Director:
- Jukka Kärkkäinen, Sini Liimatainen
Once I Loved a Girl in Vienna
- Year:
- 1931
- Director:
- Erich Schönfelder
Once I Passed
- Year:
- 2022
- Director:
- Martin Gerigk, Martin Gerigk
Once I was Malerba
- Year:
- 2016
- Director:
- Toni Trupia
Once There Was a Waltz
- Year:
- 1932
- Director:
- Victor Janson
Once Upon a Dream - A Journey to the Last Spaghetti Western
- Year:
- 2015
- Director:
- Tonislav Hristov
Once Upon a Time... Indianerland
- Year:
- 2017
- Director:
- Ilker Çatak
Once Upon a Time... the Americas
- Year:
- 1992
- Director:
- N/A
Once Upon a Time... The Explorers
- Year:
- 1996
- Director:
- N/A
Once we are dancing
- Year:
- 2018
- Director:
- Dirk Heth, Dirk Lienig, Olaf Winkler
One Breath
- Year:
- 2016
- Director:
- Christian Zübert
One by One
- Year:
- 2016
- Director:
- Stefan Ruf
One Couch at a Time
- Year:
- 2012
- Director:
- Alexandra Liss
One dances, the Other doesn't
- Year:
- 2024
- Director:
- Emilie Girardin
One Day in September
- Year:
- 2008
- Director:
- Sohrab Mohammad
One Day You'll Understand
- Year:
- 2008
- Director:
- Amos Gitai
One Floor Below
- Year:
- 2015
- Director:
- Radu Muntean
One Hundred Steps
- Year:
- 2021
- Director:
- Benjamin de Burca, Bárbara Wagner
One Image, Two Acts
- Year:
- 2020
- Director:
- Sanaz Sohrabi
One in a Million
- Year:
- 2022
- Director:
- Joya Thome
Onekotan: The Lost Island
- Year:
- 2015
- Director:
- Simon Thussbas, Matthias Mayr
One Last Flight
- Year:
- 1999
- Director:
- Richard Stanley
One Last Game
- Year:
- 2011
- Director:
- Ayassi
One Long Summer
- Year:
- 2006
- Director:
- Steffi Niederzoll
One Man's Happiness
- Year:
- 2018
- Director:
- Rainer Kaufmann
One Million K(l)icks
- Year:
- 2015
- Director:
- Alex Padrutt, Oliver Juhrs
One Minute Puberty
- Year:
- 2011
- Director:
- Alexander Gellner
One Night, One Life
- Year:
- 2002
- Director:
- Oliver Herrmann
One Night to Remember with Seal
- Year:
- 2005
- Director:
- Volker Weicker
One or Two Questions
- Year:
- 2018
- Director:
- Kristina Konrad
One Shot
- Year:
- 2011
- Director:
- Dietrich Brüggemann
One Shot Left
- Year:
- 2017
- Director:
- Manuel Vogel
One Step Behind
- Year:
- 2005
- Director:
- Birger Larsen
One Stormy Night
- Year:
- 2019
- Director:
- Gil Alkabetz
The One, the Only, the Real Tarzan
- Year:
- 2004
- Director:
- Florin Iepan, Eva Specht
One Too Many on Board
- Year:
- 1935
- Director:
- Gerhard Lamprecht
One, Two, Three: Corona
- Year:
- 1948
- Director:
- Hans Müller
One Way Ticket
- Year:
- 2003
- Director:
- Ulrike Grote
One Way Ticket
- Year:
- 2017
- Director:
- Youjin Do
The One-Way Ticket
- Year:
- 2023
- Director:
- Melika Rezapour
The One Who Crossed the Sea
- Year:
- 2020
- Director:
- Jonas Riemer
The One Who Runs Away Is the Ghost
- Year:
- 2021
- Director:
- Qinyuan Lei
One Word
- Year:
- 2020
- Director:
- Viviana Uriona, Viviana Uriona
One Zero One: The Story of Cybersissy & BayBjane
- Year:
- 2013
- Director:
- Tim Lienhard
Onkel Albin
- Year:
- 2011
- Director:
- Simon Guy Fässler
Onkel Bräsig
- Year:
- 1936
- Director:
- Erich Waschneck
Onkel Günter
- Year:
- 2020
- Director:
- Juan Francisco Riumalló
Onkel Theodor amüsiert sich
- Year:
- 1934
- Director:
- Bernhard Huth, von Treskow
Onkel Wanja
- Year:
- 2004
- Director:
- Barbara Frey
Onkel Wanja
- Year:
- 2019
- Director:
- Anna Martinetz
Online - Meine Tochter in Gefahr
- Year:
- 2012
- Director:
- Oliver Dommenget
The Online Shop
- Year:
- 2023
- Director:
- Carsten Woike
Only a God Can Save Us
- Year:
- N/A
- Director:
- Jeffrey Van Davis
The Only Girl
- Year:
- 1933
- Director:
- Friedrich Hollaender
Only God Can Judge Me
- Year:
- 2017
- Director:
- Özgür Yildirim
Only Nine Years of Happiness
- Year:
- 2012
- Director:
- Tobias Focke
Only One Day in Berlin
- Year:
- 2018
- Director:
- Malte Wirtz
Only one night in Tel Aviv
- Year:
- 2023
- Director:
- Malte Wirtz
On/Off: Mark Stewart
- Year:
- 2009
- Director:
- Tøni Schifer
On & Off the Catwalk - by Heidi Klum
- Year:
- 2026
- Director:
- N/A
On/Off the Record
- Year:
- 2002
- Director:
- Jörg Adolph
On the Border
- Year:
- 2024
- Director:
- Gerald Igor Hauzenberger, Gabriela Schild
On the Drive
- Year:
- 2014
- Director:
- Thomas Scherer
On the Imperfection of the Geological Record
- Year:
- 2019
- Director:
- Martín Oliveros Heinze
On the Inside
- Year:
- 2011
- Director:
- Uwe Janson
On the Line
- Year:
- 2013
- Director:
- David Nieto Wenzell
On the Old Roman Road
- Year:
- 2001
- Director:
- Don Askarian
On the Other Side of Life
- Year:
- 2009
- Director:
- Stefanie Brockhaus, Andreas Wolff
On the Other Side of the Pillow a Rose Was Blossoming
- Year:
- 2018
- Director:
- Dragana Jovanovic
On the Outskirts
- Year:
- 2006
- Director:
- Aysun Bademsoy
On the Rim of the Sky
- Year:
- 2014
- Director:
- Hongjie Xu
On the Road with Elsa
- Year:
- 2014
- Director:
- Bettina Woernle
On the Run
- Year:
- 2016
- Director:
- Frederik Maarsen
On the Threshold to Another World
- Year:
- 2003
- Director:
- Viktor Seastrom
On the Wave
- Year:
- 2025
- Director:
- Axel Gerdau, Peter Wolf
On the Way Home
- Year:
- 2011
- Director:
- Sergei Kachkin
On Thin Ice
- Year:
- 2020
- Director:
- Henry M. Mix, Boas Schwarz
On Time
- Year:
- 2008
- Director:
- Ted Chung
On Your Way
- Year:
- 2017
- Director:
- Thomas Sali
Opa hat die Schnauze voll
- Year:
- 2020
- Director:
- Uljana Havemann
Opa, ledig, jung
- Year:
- 2015
- Director:
- Markus Herling
O Palmenbaum
- Year:
- 2000
- Director:
- Xaver Schwarzenberger
Opa wird Papa
- Year:
- 2018
- Director:
- Markus Herling
Open
- Year:
- 2005
- Director:
- Charlotte Siebenrock
Open Cage
- Year:
- 2015
- Director:
- Sinisa Galic
Open Desert
- Year:
- 2013
- Director:
- Robert Krause
Open Fire
- Year:
- 1994
- Director:
- Kurt Anderson
Open Mic Days
- Year:
- 2020
- Director:
- Vidura B.R.
Opera Ball
- Year:
- 1998
- Director:
- Urs Egger
Opera Ball
- Year:
- 1931
- Director:
- Max Neufeld
Opera Fanatic
- Year:
- 1999
- Director:
- Jan Schmidt-Garre
Opera Glasses
- Year:
- 2019
- Director:
- Mila Zhluktenko
Opéra imaginaire
- Year:
- 1993
- Director:
- José Abel, Hilary Audus, Jonathan Hills
Operation Bluebird
- Year:
- 1999
- Director:
- Stefan Holtz
Operation Dance Sensation
- Year:
- 2003
- Director:
- Thilo Gosejohann
Operation Guardian Angel
- Year:
- 2009
- Director:
- Peter Fratzscher