The Clerks director told The Film Stage that he was bowled over after seeing a preview screening of Wright's eagerly-awaited movie, which is based on Bryan Lee O'Malley's graphic novel series.
"That movie is great. It's spellbinding and nobody is going to understand what the f**k just hit them. I would be hard pressed to say 'he's bringing a comic book to life!' but he is bringing a comic book to life," said Smith.
"If you've ever seen Scott Pilgrim, he did a f**king damn fine job of taking essentially an anime looking book and putting it into the real world while keeping everything about that book that's kind of cool and what pops. He describes it as Say Anything meets Kill Bill and he's not that far from accuracy."
Smith also singled out stars Michael Cera and Ellen Wong, who portrays the lead character's ex Knives Chau, for praise and said that directors Quentin Tarantino and Jason Reitman (Up In The Air) were fans of the movie.
"I mean Quentin loves everything," Smith commented. "He's a true movie fan and if you wanna talk about a true believer, good lord. He's the original true believer. He was really into it. I don't know what he said to Edgar, but he seemed really into it. Jason [Retiman] was into it as well."
Scott Pilgrim Vs. The World is due out in the UK on August 6.