Comedies:
* High Fidelity (2000): As record store employee, Barry.
* Shallow Hal (2001): As Hal, who falls in love with a woman whose beauty he only sees through hypnosis.
* Orange County (2002): As Lance, a guidance counselor with a secret past.
* School of Rock (2003): As Dewey Finn, a down-on-his-luck musician who pretends to be a substitute teacher to make money.
* King Kong (2005): As Carl Denham, the director of a film expedition.
* Tenacious D in The Pick of Destiny (2006): As JB, half of the titular rock duo.
* Kung Fu Panda (2008): As Po, a clumsy panda who becomes a kung fu master.
* Tropic Thunder (2008): As Jeff "The Dude" Portnoy, an actor who believes he's actually a soldier.
* Gulliver's Travels (2010): As Lemuel Gulliver, a travel writer who is shipwrecked in Lilliput.
* The Green Hornet (2011): As Kato, the masked vigilante's sidekick.
* Bernie (2011): As Bernie Tiede, a mortician who kills his elderly friend and hides her body.
* Goosebumps (2015): As R.L. Stine, the author of the Goosebumps books.
* Jumanji: Welcome to the Jungle (2017): As Professor Sheldon "Shelly" Oberon, an avatar in the Jumanji game.
* Jumanji: The Next Level (2019): As Professor Sheldon "Shelly" Oberon, an avatar in the Jumanji game.
Other Genres:
* The Cable Guy (1996): As the "Cable Guy," a lonely man who becomes obsessed with his new customer.
* The Holiday (2006): As Miles, a British romantic interest for Cameron Diaz's character.
* Kung Fu Panda 2 (2011): As Po, a clumsy panda who becomes a kung fu master.
* Kung Fu Panda 3 (2016): As Po, a clumsy panda who becomes a kung fu master.
* Nacho Libre (2006): As Ignacio "Nacho" Dominguez, a cook who becomes a masked wrestler.
* The D Train (2015): As Dan, a middle-aged man who travels to a high school reunion to reconnect with a former friend.
This is not an exhaustive list, but it includes some of Jack Black's most popular and critically acclaimed films. He is known for his comedic timing, energetic performances, and willingness to embrace the absurd.