Alien vs. Predator
In delivering non-18-rated excitement, Alien vs. Predator is an acceptably average science-fiction action thriller with some noteworthy highlights, even if it squanders its opportunity to intelligently combine two popular franchises. Rabid fans can justifiably ask "Is that all there is?" after a decade of development hell and eager anticipation, but we're compensated by reasonably logical connections to the Alien legacy and the still-kicking Predator franchise (which hinted at AVP rivalry at the end of Predator 2); some cleverly claustrophobic sets, tense atmosphere and impressive digital effects; and a climactic AVP smackdown that's not half bad. This disposable junk should've been better, but nobody who's seen Mortal Kombat or Resident Evil should be surprised by writer-director Paul W.S. Anderson's lack of imagination. As a brisk, 90-minute exercise in generic thrills, however, Anderson's work is occasionally impressive... right up to his shameless opening for yet another sequel. --Jeff Shannon

Alien vs. Predator: Requiem
For those who found 2004's Aliens vs. Predator too lightweight in the gore-and-guns department, Aliens vs. Predator: Requiem offers a marked improvement in both categories, as well as a respectable amount of rumbles between the title extraterrestrials. Set in the 21st century (which predates the story to all of the Alien features), Requiem sends a crippled Predator ship crashing to Earth in a small Colorado town; unbeknownst to the locals, the craft is loaded with H.R. Giger's insectoid monsters, which make quick work of most of the population. As the human cast is slowly whittled to a few hardy (if unmemorable) souls, a Predator warrior also arrives to complicate matters and do battle with the Aliens, as well as a ferocious Alien-Predator hybrid (dubbed a Predalien by the sci-fi and horror press). Visual-effects designers and music-video helmers The Strause Brothers (who make their feature directorial debut here) keep the action on frantic throughout, which is wise, since the dialogue and characters are threadbare at best; that should matter little to teenage male viewers, who are inarguably the film's key audience. Fans of the Alien franchise, however, may find the offhanded nod to the series' mythology given during the finale its sole saving grace. --Paul Gaita