From Downey Jr.'s purposely racist embodiment of African-American anachronisms to Black's scatological humor, everything in Tropic Thunder qualifies as satire, not spoof. It's an important distinction. Pauline Kael once noted that "unlike satire, spoofing has no serious objectives; it doesn't attack anything that anyone could take seriously; it has no cleansing power."
Lawrence ToppmanCharlotte Observer
If you wait through the credits, you get one last joke in the fine print: The actors shot the whole movie in Hawaii, on the fabulously lush island of Kauai. So while they were shooting a story about indulged prima donnas, they were working themselves in one of the most tourist-friendly spots on Earth. You've gotta smile at that.