Background image (movieclip) final render appears flipped my background movie-clip final render appears flipped. I have checked whether the camera is mirrored or in the background image options if the 'flip horizon' is checked - I've tried to render with the 'vertical flip' option checked but still the final result is the same, a horizon flipped. The video appears on the correct horizon on the 3d viewer, even on the render result preview. When i choose render active scene, blender renders out the background video flipped.   

Please, some one help me out, thank you.
Thank you to the people that replied. 

OK, so the issue was that i had an object made linked to my video, when I created it i had flipped the horizon. I worked on some other objects, worked on camera tracking as well(in other words forgot about that object). When I remembered I had this object i hide it and flipped the backdrop image to its original horizon. So, when I was rendering the hide element was showing.

Yay!!