I have a long strip of plastic from my Lights, Camera, Action that is seriously warped. All I can think of is that it popped off one of the clips holding it, became wedged below and then heated up in the sun. Regardless, it is seriously warped. I've attached a picture.
I think the obvious way would be to h eat it up and then put something on it to hold it flat, but I don't want to break it in the process and thought that there must be someone on here who has done it before and could give me some advice.