It was a battle between glamorous actresses and geeky guys at the Scott Pilgrim VS. The World premiere in London on Thursday, and RadarOnline.com has photos from the red carpet.

PHOTOS: RED CARPET RADAR: Scott Pilgrim Vs The World Premiere

While the female leads took the event extremely seriously in designer dresses and immaculately styled hair and make-up, the male stars saw it was a challenge to show off their whacky comedy skills.

Romance (wham)! Music (bam)! Irony (Ka-POW)! Scott Pilgrim Vs. The World has arrived, ready to win you over with power-pop hooks, nostalgia-soaked references and so much dry wit that you might have to see it again, just to take it all in.

Michael Cera stars as Scott Pilgrim, a self-absorbed 23-year-old who lives in snowy Toronto with his roommate, Wallace Wells (played by a perfectly brooding Kieran Culkin, who steals every scene). Scott’s in a rock band, dates a high school girl named Knives Chau (Ellen Wong) and has an aversion to working. When he falls in love with Ramona Flowers -- who’s literally the emo rock chick of his dreams (played by Mary Elizabeth Winstead) -- his world takes on a casually supernatural quality, as he must fight Ramona’s seven “evil exes” if he wants to date her. The eclectic exes, played by actors including Chris Evans (as the skateboarding, action-hero-ex) and Jason Schwartzman (as the uber-evil, music-mogul-ex) appear one by one to battle Scott, who fights back with the type of karate kicks and punch-outs familiar to fans of Mortal Kombat.