Movies: Change images that end in png, too.

If you look at https://duckduckgo.com/?q=movies now, you'll see that the Transformers poster is blurred.

![screen shot 2014-06-30 at 6 44 46 am](https://cloud.githubusercontent.com/assets/81969/3428678/465690f8-0044-11e4-9c9f-a2713cf364ff.png)

That's because the image extension is png, and it has parameters so the regexp wasn't matching it.
Yes. It might be a bug on their end, so I'll send an e-mail to them. But this is a fix on our end while the bug still exists.

This doesn't need to change when the bug gets fixed (since it simply won't match the regexp).