Dude, Where's My Car?
America! F**k yeah!!!
The Fountainhead. The only drawback is Gary Cooper's wooden acting.
Flight of the Intruder, from 1991.
To tell you the truth, it's not that great a film, but with right-winger John Milius at the helm it's probably the only Vietnam War movie ever made that argues that America should have handled the war more aggressively (to win it) or never entered in the first place-- the exact same position Barry Goldwater took on 'Nam in 1964.
If one can overlook the co-starring role of socialist Danny Glover in the film (and I can), then you can enjoy the scene where Willem Dafoe defies his politically-hamstrung orders (and weak U.S. policy) to bomb the hell out of a Hanoi "safe area". I'd say that's about as conservative as it gets in Hollywood.
And Hey, if that one's not to taste you can always watch Blazing Saddles again (okay, not really conservative, but so anti-PC and I LOVE it!).