Darren at 2010-05-10 12:19:48:
I think character is extremely important for an action movie if it hopes to be taken seriously or have a lasting impact.
Die Hard is a great example, but so is First Blood. Though First Blood is not as much of an action movie as Die Hard and its imitators, the reason it is such an engrossing and influential film is because you understand John Rambo's plight and sympathize with him. A Green Beret hiding from cops in the woods is not nearly as interesting if you don't see Rambo speaking with a family member of his former colleague, getting arrested and mistreated by cops, and the visual shot of his scars from being tortured.
A lot of action movies are hard to enjoy or take seriously because the audience may not want to root for an angry, macho meathead performing unbelievable feats of strength, stealth, or cunning. However, scenes that show the character's humanity are vitally important.
It's probably also worth noting that neither Die Hard nor First Blood opened with a big action sequence. Both were very patient in setting up characters and motivations before breaking into the more memorable action scenes.