Spoiler alert: The title character of the movie "MacGruber," opening May 21, does not blow up every few minutes.
That would be a reasonable presumption, though, considering that's always the outcome of the "Saturday Night Live" sketch on which the film is based and in which a rugged action-adventure hero gamely fails time and again to dismantle a bomb.
Starring "SNL's" Will Forte as MacGruber and Kristen Wiig as his trusty sidekick, the film is rounded out with an unexpectedly straight-faced supporting cast, including Val Kilmer, Ryan Phillippe and Powers Booth.
The sketch's slim premise is perhaps not the one most immediately apparent for a transition to the big screen. In expanding the idea, the writing team of Forte, John Solomon and Jorma Taccone decided to place the haplessly insecure MacGruber into a plot from a self-serious '80s-style action movie, like a second-tier Schwarzenegger-Stallone picture. The storyline of MacGruber coming out of retirement to chase down a nuke-stealing nemesis provides a framework for not only big explosions but also a free-form series of seemingly random gags — a vulgarly unpronounceable name, say, or a running joke involving a pullout car stereo.