Jennifer Garner's most recent roles don't scream "action star," but you youngins might forget that Jennifer Garner was an action star in the show 'Alias.' It wasn't super-hero level action, but she proved she could kick ass. Unfortunately, this role isn't considered a classic by any means. Here's the big problem with this movie. The year was 2005, and superhero movies were still very rare. Comic book fans were starving to see their favorite characters on the big screen, not Elektra. It's like if you really wanted to drink alcohol so you went to a party, and all they had was kombucha. Sure, it has alcohol, but like 0.08%. We can't get messed up off that! I hope you understand the analogy.
The movie is just middle of the road, but I think it gets a worse rap for the reason I list above.