- Disclosure Day
2026 Noah Scanlon
- Bridget Jones: Mad About the Boy
2025 Mark Darcy
- Luther: Never Too Much
2024 Executive Producer
- Rye Lane
2023 Love Guac’tually Server (uncredited)
- Squaring the Circle (The Story of Hipgnosis)
2023 Producer
- Empire of Light
2022 Donald Ellis
- Operation Mincemeat
2022 Ewen Montagu
- Mothering Sunday
2021 Mr Godfrey Niven
- The Secret Garden
2020 Lord Archibald Craven
- Supernova
2020 Sam
- 1917
2019 General Erinmore
- Kursk
2018 Commodore David Russell
- The Mercy
2018 Donald Crowhurst
- Mary Poppins Returns
2018 Wilkins / Wolf (voice)
- Mamma Mia! Here We Go Again
2018 Harry
- The Happy Prince
2018 Executive Producer
- Kingsman: The Golden Circle
2017 Harry Hart
- Red Nose Day Actually
2017 Jamie
- Bridget Jones's Baby
2016 Mark
- Genius
2016 Max Perkins
- Loving
2016 Producer
- Kingsman: The Secret Service
2015 Harry Hart / Galahad
- Eye in the Sky
2015 Producer
- Before I Go to Sleep
2014 Ben
- Magic in the Moonlight
2014 Stanley Crawford
- The Railway Man
2013 Eric
- Devil's Knot
2013 Ron Lax
- Gambit
2012 Harry Deane
- Arthur Newman
2012 Arthur Newman
- Stars in Shorts
2012 Steve
- Tinker Tailor Soldier Spy
2011 Bill Haydon
- Main Street
2010 Gus Leroy
- The King's Speech
2010 King George VI
- Steve
2010 Steve
- Dorian Gray
2009 Lord Henry Wotton
- Genova
2009 Joe
- A Single Man
2009 George
- St Trinian's 2: The Legend of Fritton's Gold
2009 Geoffrey Thwaites
- A Christmas Carol
2009 Fred (voice)
- Mamma Mia!
2008 Harry Bright
- The Accidental Husband
2008 Richard Braxton
- Easy Virtue
2008 Mr. Whittaker
- In Prison My Whole Life
2008 Executive Producer
- St Trinian's
2007 Geoffrey Thwaites
- Then She Found Me
2007 Frank
- The Last Legion
2007 Aurelius
- And When Did You Last See Your Father?
2007 Blake Morrison
- Celebration
2007 Russell
- Born Equal
2006 Mark
- Nanny McPhee
2005 Mr. Brown
- Where the Truth Lies
2005 Vince
- Trauma
2004 Ben
- Bridget Jones: The Edge of Reason
2004 Mark
- Love Actually
2003 Jamie Bennett
- Girl with a Pearl Earring
2003 Johannes Vermeer
- What a Girl Wants
2003 Henry Dashwood
- Hope Springs
2003 Colin Ware
- The Importance of Being Earnest
2002 John “Jack” Worthing
- Bridget Jones's Diary
2001 Mark Darcy
- Conspiracy
2001 Dr. Wilhelm Stuckart
- Four Play
2001 Allen Portland
- Relative Values
2000 Peter Ingleton
- Donovan Quick
2000 Donovan Quick
- My Life So Far
1999 Edward Pettigrew
- The Turn of the Screw
1999 Master
- The Secret Laughter of Women
1999 Matthew Field
- Blackadder: Back & Forth
1999 William Shakespeare
- Shakespeare in Love
1998 Lord Wessex
- Fever Pitch
1997 Paul Ashworth
- A Thousand Acres
1997 Jess Clark
- The English Patient
1996 Geoffrey Clifton
- Circle of Friends
1995 Simon Westward
- The Widowing of Mrs. Holroyd
1995 Charles Holroyd
- The Deep Blue Sea
1994 Freddie Page
- Playmaker
1994 Ross Talbert / Michael Condren
- Ruth Rendell: Master of the Moor
1994 Stephen Whalby
- The Hour of the Pig
1993 Richard Courtois
- Mad at the Moon
1992 Barber (uncredited)
- Hostages
1992 John McCarthy
- Femme Fatale
1991 Joseph Prince
- Out of the Blue
1991 Alan
- Wings of Fame
1990 Brian Smith
- Apartment Zero
1989 Adrian LeDuc
- Valmont
1989 Valmont
- Tumbledown
1988 Robert Lawrence
- A Month in the Country
1987 Tom Birkin
- The Secret Garden
1987 Adult Colin Craven
- Dutch Girls
1985 Neil Truelove
- Nineteen Nineteen
1985 Young Alexander
- Another Country
1984 Tommy Judd
- Camille
1984 Armand Duval
- Cry to Heaven
Carlo
- The Joy of Sex
Alex Comfort
- Otherwise Engaged
Charlie's Father
