I added some movie->stop(); and movie->start(); in places I thought might run when its hidden and got the usage down to 0 when its not visible (I think). Provided people don't constantly have the lockscreen up, it should be fine... maybe

Also fixed the issue with the background taking over everything

I've uploaded the lockscreen files with the changes cause I can't remember all the stuff I've modified tonight.

Edit: Forgot to attach... its a little late here