Hollwood.com: Invincible: Plot synopsis, cast, crew, multimedia and news.
IMDb: Invincible: Cast, crew, plot synopsis, user comments and related links.
Metacritic: Invincible: Quotes from and links to reviews, synopsis, and overall rating.
Rotten Tomatoes: Invincible: Quotes from and links to reviews, plot synopsis, and forum.
World Socialist Web Site: Invincible: Stefan Steinberg's review.