Question about Title protection to my comic book?

Okay, I've heard both sides to the argument and I have a three word title to my comic book. I know one of the big comic book companies (DC/Marvel) had a comic book (now cancelled for like over 15 yrs.) that had the first two words of my work as the title and I wanted to know if I'm protected with mine b/c i have an extra word in the title. Say the cancelled title was "Superstrength Fighters" which was about superstrength superheroes fighting. My title would be "Superstrength Fighters Club" where superstrength superheroes fight invading aliens. There are a couple of similarities, but not PLAGERiZING which i think copyrights/trademarks protect. The cancelled title wasn't popular like BAtman or Harry Potter, but I've heard that Jim Lee couldn't title Gen 13 originally Gen X b/c Marvel might try to sue him since they were creating Generation X. I also heard Underworld the movie got sued b/c they're storyline had similarities to Werewolf the Apocalypse. On another note Spice Girls vs.Spice