Lehmann attended Columbia University. His first job in the film industry was answering phones at Francis Ford Coppola's American Zoetrope film company. Later he supervised cameras on films that included 1983's The Outsiders. Lehmann attended film school at USC and graduated in 1985. While at USC he made a student film, Beaver Gets a Boner, the title of which he believes helped get the attention of film executives who would later hire him. Lehmann is probably most noted for directing the black comedy Heathers. He also directed 40 Days and 40 Nights, The Truth About Cats & Dogs, Hudson Hawk, Meet the Applegates, Airheads and Because I Said So.
| Movie | Heathers | 1989 |
| Movie | 40 Days and 40 Nights | 2002 |
| Movie | Because I Said So | 2007 |
| Episode |
Big Love Good Guys and Bad Guys |
2007 |
| Episode |
Scream Queens Thanksgiving |
2015 |
| Episode |
Veronica Mars Spring Break Forever |
2019 |
| Episode |
Heels Heavy Heads |
2023 |
| Episode |
Bored to Death The Blonde in the Woods |
2011 |
| Episode |
Heels Discord |
2023 |
| Episode |
Blunt Talk I Can't Believe I Made Love to a Sociopath |
2016 |
| Episode |
The Larry Sanders Show The New Writer |
1996 |
| Episode |
Blunt Talk A Cell Doesn't Have to Be a Closet |
2016 |
| Movie | Airheads | 1994 |
| Episode |
Tyrant Prayer for Our Daughters |
2016 |
| Episode |
Snowfall The Offer |
2018 |
| Episode |
True Blood She's Not There |
2011 |
| Episode |
Worst Week The Wedding |
2008 |
| Episode |
American Horror Story Unholy Night |
2012 |
| Episode |
Bored to Death Gumball! |
2011 |
| Episode |
White Famous Wolves |
2017 |
| Episode |
True Blood I'm Alive and on Fire |
2011 |
| Episode |
The Larry Sanders Show Make a Wish |
1997 |
| Episode |
Californication Blues from Laurel Canyon |
2008 |
| Episode |
White Famous Make-Believe |
2017 |
| Episode |
The Larry Sanders Show I Was a Teenage Lesbian |
1995 |
| Episode |
Californication Like Father Like Son |
2014 |
| Episode |
Fallen Angels Good Housekeeping |
1995 |
| Movie | The Truth About Cats & Dogs | 1996 |
| Episode |
True Blood It Hurts Me Too |
2010 |
| Episode |
Homicide: Life on the Street Night of the Dead Living |
1993 |
| Episode |
The Terror Gaman |
2019 |
| Episode |
American Horror Story Smoldering Children |
2011 |
| Episode |
True Blood Soul of Fire |
2011 |
| Movie | Hudson Hawk | 1991 |
| Episode |
Bored to Death The Black Clock of Time |
2011 |
| Episode |
True Blood Dead Meat |
2013 |
| Episode |
Deception (2018) Getting Away Clean |
2018 |
| Episode |
American Horror Story The Name Game |
2013 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 1 |
2022 |
| Episode |
The Comeback Valerie Bonds With the Cast |
2005 |
| Episode |
Marvel's Jessica Jones AKA The Perfect Burger |
2019 |
| Movie | My Giant | 1998 |
| Episode |
Miss Guided Rebel Yell |
2008 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 2 |
2022 |
| Episode |
True Blood The Fourth Man in the Fire |
2008 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 3 |
2022 |
| Episode |
Deception (2018) Forced Perspective |
2018 |
| Episode |
The Brink I'll Never Be Batman |
2015 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 4 |
2022 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 5 |
2022 |
| Episode |
Miss Guided Pool Party |
2008 |
| Episode |
68 Whiskey Buckley's Goat |
2020 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 6 |
2022 |
| Episode |
68 Whiskey Finger Lickin' Good |
2020 |
| Episode |
Californication Another Perfect Day |
2011 |
| Episode |
68 Whiskey Trouble in River City |
2020 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 7 |
2022 |
| Episode |
True Blood Authority Always Wins |
2012 |
| Episode |
Bored to Death The Gowanus Canal Has Gonorrhea! |
2010 |
| Episode |
68 Whiskey Pain Management |
2020 |
| Episode |
The Woman in the House Across the Street from the Girl in the Window Episode 8 |
2022 |
| Episode |
Pasadena Run Lily Run |
2002 |
| Episode |
Dexter Ricochet Rabbit |
2011 |
| Episode |
The Larry Sanders Show The Roast |
1997 |
| Episode |
The Comeback Valerie Stands Up for Aunt Sassy |
2005 |
| Episode |
Bored to Death We Could Sing a Duet |
2011 |
| Episode |
The West Wing Five Votes Down |
1999 |
| Episode |
Life on Mars (1994) Pilot |
1994 |
| Episode |
Californication Daughter |
2014 |
| Episode |
The Brink Tweet Tweet Tweet |
2015 |
| Episode |
Californication The Party |
2012 |
| Episode |
Bored to Death I've Been Living Like a Demented God! |
2010 |
| Episode |
The Beautiful Life: TBL Pilot |
2009 |
| Episode |
Snowfall The Bottoms |
2019 |
| Episode |
The Larry Sanders Show People's Choice |
1994 |
| Episode |
The Beautiful Life: TBL The Beautiful Aftermath |
2009 |
| Episode |
Deception (2018) Transposition (2) |
2018 |
| Episode |
The Brink Who's Grover Cleveland? |
2015 |
| Episode |
The Beautiful Life: TBL The Beautiful Lie |
2009 |
| Movie | Flakes | 2007 |
| Episode |
The Beautiful Life: TBL The Beautiful Triangle |
2009 |
| Episode |
Go On Win at All Costas |
2013 |
| Episode |
The Big C Divine Intervention |
2010 |
| Episode |
True Blood Keep This Party Going |
2009 |
| Episode |
The Big C New Beginnings |
2010 |
| Episode |
Snowfall A Long Time Coming |
2017 |
| Episode |
Nurse Jackie Play Me |
2011 |
| Episode |
True Blood I Got a Right to Sing the Blues |
2010 |
| Episode |
The Beautiful Life: TBL The Beautiful Campaign |
2009 |
| Movie | Meet the Applegates | 1991 |
| Episode |
True Blood Let's Boot and Rally |
2012 |
| Episode |
Tyrant State of Emergency |
2014 |
| Episode |
Chance Hiring It Done |
2016 |
| Episode |
The Comeback Valerie Gets a Very Special Episode |
2005 |
| Episode |
Tyrant My Brother's Keeper |
2014 |
| Episode |
Big Love Outer Darkness |
2009 |
| Episode |
Big Love The Baptism |
2006 |
| Episode |
Century City Pilot |
2004 |
| Episode |
The Comeback Valerie Relaxes in Palm Springs |
2005 |
| Episode |
The Brink There Will Be Consequences |
2015 |
| Episode |
Bored to Death The Case of the Missing Screenplay |
2009 |
| Episode |
Worst Week The Sex |
2009 |
| Episode |
Watching Ellie Aftershocks |
2002 |
| Episode |
Outsourced Bolloween |
2010 |
| Episode |
Californication Coke Dick & First Kick |
2008 |
| Episode |
True Blood Escape From Dragon House |
2008 |
| Episode |
Chance Unlocking Your Hidden Powers |
2016 |
| Episode |
True Blood Shake and Fingerpop |
2009 |
| Episode |
68 Whiskey Close Your Eyes and Jump |
2020 |
| Episode |
Will Trent Have You Never Been to a Wedding? |
2024 |
| Episode |
True Blood Save Yourself |
2012 |
| Episode |
Tyrant Gone Fishing |
2014 |
| Episode |
Dexter The Dark... Whatever |
2012 |
| Episode |
True Blood Hard-Hearted Hannah |
2009 |
| Episode |
Californication Glass Houses |
2009 |
| Movie | Meet the Applegates | 1991 |
| Movie | Ed Wood | 1994 |
| Movie | Es ist nicht vorbei | 2011 |
| Movie | Berlin, Berlin | 2020 |
| Movie | Die Bullenbraut 2 - Der Tod hat 17 Karat | 2006 |
| Movie | Doppeltes Dreieck | 1999 |
| Movie | Night Train to Lisbon | 2013 |
| Movie | Die Pfefferkörner und der Schatz der Tiefsee | 2020 |
| Movie | Der Tote im Eis | 2013 |
| Movie | Engel sucht Liebe | 2009 |
| Movie | Das Rätsel des blutroten Rubins | 2001 |
