is using a picture of mr freeze on your website illegal? this is from my website URL is : http://www.nexwiki.org/help/flags.php/Flags and then click "what is a freeze"
It doesn't matter where you found it, you can't use it without permission. The character and bat logo are also trademarks - you can't use them.
It's illegal. You should send some emails to customer service or something and see if they will let you use it for free. It would be interesting to see what they said.