Editing Martha Plimpton (section)

===Film===
{| class="wikitable plainrowheaders sortable"
|-
! scope="col" |Year
! scope="col" |Title
! scope="col" |Role
! class="unsortable" |Notes
|-
| 1981
| ''[[Rollover (film)|Rollover]]''
| Miss. Fewster
|
|-
| 1984
| ''[[The River Rat]]''
| Jonsy
|
|-
| 1985
| ''[[The Goonies]]''
| Stephanie "Stef" Steinbrenner
|
|-
| rowspan="2" | 1986
| ''A Life in the Day''
| {{N/A}}
| Short film
|-
| ''[[The Mosquito Coast (film)|The Mosquito Coast]]''
| Emily Spellgood
|
|-
| 1987
| ''[[Shy People]]''
| Grace Sullivan
|
|-
| rowspan="3" | 1988
| ''[[Stars and Bars (1988 film)|Stars and Bars]]''
| Bryant
|
|-
| ''[[Running on Empty (1988 film)|Running on Empty]]''
| Lorna Phillips
|
|-
| ''[[Another Woman (1988 film)|Another Woman]]''
| Laura
|
|-
| rowspan="2" | 1989
| ''[[Zwei Frauen]]''
| Claudia Jacoby
|
|-
| ''[[Parenthood (film)|Parenthood]]''
| Julie Buckman-Higgins
|
|-
| 1990
| ''[[Stanley & Iris]]''
| Kelly King
|
|-
| 1991
|''[[Samantha (film)|Samantha]]''
| Samantha
|
|-
| rowspan="2" | 1992
| ''A Blink of Paradise''
| Mother
|
|-
| ''[[Inside Monkey Zetterland]]''
| Sofie
|
|-
| rowspan="3" | 1993
| ''The Perfect Woman''
| {{N/A}}
| Short film
|-
| ''[[Josh and S.A.M.]]''
| Alison (The Liberty Maid)
|
|-
| ''My Life's in Turnaround''
| Herself
|
|-
| rowspan="2" | 1994
| ''[[The Beans of Egypt, Maine]]''
| Earlene Pomerleau
|
|-
| ''[[Mrs. Parker and the Vicious Circle]]''
| [[Jane Grant]]
|
|-
| 1995
| ''[[Last Summer in the Hamptons]]''
| Chloe Garfield
|
|-
| rowspan="3" | 1996
| ''[[I Shot Andy Warhol]]''
| Stevie
|
|-
| ''[[Beautiful Girls (film)|Beautiful Girls]]''
| Jan
|
|-
| ''[[I'm Not Rappaport (film)|I'm Not Rappaport]]''
| Laurie Campbell
|
|-
| rowspan="2" | 1997
| ''[[Colin Fitz Lives!|Colin Fitz]]''
| Ann
|
|-
| ''[[Eye of God (film)|Eye of God]]''
| Ainsley Dupree
|
|-
| rowspan="2" | 1998
| ''[[Music from Another Room (film)|Music from Another Room]]''
| Karen Swan
|
|-
| ''[[Pecker (film)|Pecker]]''
| Tina
|
|-
| 1999
| ''[[200 Cigarettes]]''
| Monica
|
|-
| 2001
| ''[[The Sleepy Time Gal]]''
| Rebecca
|
|-
| 2004
| ''[[Hair High]]''
| Miss Crumbles
| Voice role
|-
| 2006
| ''[[Marvelous (film)|Marvelous]]''
| Gwen
|
|-
| 2007
| ''[[Dante's Inferno (2007 film)|Dante's Inferno]]''
| Celia
|
|-
| rowspan="2" | 2008
| ''Gone to the Dogs''
| rowspan="2" | Leslie
|
|-
| ''Puppy Love''
|
|-
| rowspan="3" | 2010
| ''I Thought About You''
| Gloria
|
|-
| ''[[Small Town Murder Songs]]''
| Sam
|
|-
| ''[[Remember Me (2010 film)|Remember Me]]''
| Helen Craig
| Uncredited
|-
| 2011
| ''[[Company (2011 film)|Company]]''
| Sarah
| Filmed production
|-
| 2017
| ''[[Hello Again (2017 film)|Hello Again]]''
| Ruth (The Politician)
|
|-
| 2018
| ''[[Honey Bee (2018 film)|Honey Bee]]''
| Louise
|
|-
| 2019
| ''[[Frozen II]]''
| Yelena
| Voice role
|-
| 2021
| ''[[Mass (2021 film)|Mass]]''
| Gail Perry
|
|-
| 2024
| [[Sardinia (film)|''Sardinia'']]
| Judith
| Short film<ref>{{cite web | url=https://heartlandfilm.prowly.com/327274-academy-award-qualifying-indy-shorts-international-film-festival-powered-by-the-indiana-economic-development-corporation-announces-2024-lineup | title=Academy Award®-Qualifying Indy Shorts International Film Festival Powered by the Indiana Economic Development Corporation Announces 2024 Lineup }}</ref><ref>{{cite web | url=https://www.imdb.com/title/tt30789650/?ref_=nv_sr_srsg_0_tt_8_nm_0_in_0_q_sardinia | title=Sardinia | website=[[IMDb]] }}</ref>
|-
| 2025
| ''[[Sovereign (film)|Sovereign]]''
|
| Completed
|}