The star took home an Oscar for his performance in the 2005 biopic.
In the 1999 thriller, Hoffman starred alongside Matt Damon, Jude Law and Gwyneth Paltrow.
Hoffman, Nicole Ari Parker, Burt Reynolds, Mark Wahlberg, Julianne Moore, Ricky Jay, John C. Reilly and Jack Wallace starred in the Oscar-nominated drama about porn in the '70s.
In the 2008 critically acclaimed drama, Hoffman earned several award nominations including, Oscar, Golden Globe and Screen Actors Guild nods.
The actor played fiery real-life, anti-establishment rock critic Lester Bangs. His conversations with the film's star, played by Patrick Fugit in a role based on Cameron Crowe's own experiences as a young music journalist, take place only via phone—but they make for some of the movie's most memorable scenes.
Hoffman played real-life CIA case officer Gust Avrakotos in the 2007 film that also starred Julia Roberts and Tom Hanks.
Hoffman played a preacher alongside Katherine Durio, Renée Zellweger, Jude Law and Nicole Kidman in the Civil War drama.
Paul Thomas Anderson's drama brought together Hoffman and Joaquin Phoenix in a tale of a charismatic religious leader and his flock.
The Oscar winner starred alongside Woody Harrelson in the blockbuster.
Rock on! The Oscar winner played a DJ broadcasting illegally in the '60s.
George Clooney's politcal thriller saw Hoffman's Paul Zara in the middle of a D.C. scandal.
The actor received a Golden Globe nomination for the 2007 flick about a pair of distant siblings brought together by family strife.
Philip Seymour Hoffman played Oakland Athletics' manager Art Howe in the Brad Pitt film.
Hoffman's boss character Dean tried to intimidate Adam Sandler in the 2002 dramedy.
Hoffman was Ben Stiller's silly best friend in the 2004 comedy that also starred Jennifer Aniston.
May the odds be ever in your favor! Donald Sutherland and Philip Seymour Hoffman planned to bring Panem an unforgettable Hunger Games.
NEXT GALLERY: Philip Seymour Hoffman: A Life in Pictures