Definitely read it. It's quite readable. And yes, the movie is definitely twisted into "look at these evil Nazi people" when in fact the author (Annapolis grad, medical discharge with tuberculosis) spent World War II trying to pull every string to get back in uniform and on active duty.

The two points I consider most important at the moment:

-- having gotten past the travesty of the script adaptation, the movie viewer in me now rolls eyes the most at the "FTL probes fired by bug farts" and the appalling lack of powered armor. I don't think Heinlein invented it -- Doc Smith certainly had some in the Lensmen books -- but he perfected it. A "Starship Troopers" movie without powered armor is almost equivalent to a "Run Silent, Run Deep" remake without submarines. Heck, those guys didn't even have sleeves on their uniforms to protect their arms from light scratches.

Heinlein famously said that readers who wanted to understand his thinking should read "Starship Troopers," "The Moon is a Harsh Mistress," and "Stranger in a Strange Land" side by side. Also, to think of all three books as posing philosophical questions rather than imposing answers.