You guys are misusing the word anamorphic - anamorphic 1080p would be 1440x1080 (with black bars in case of 2.35:1 movies), which would then be stretched to 16:9 for viewing.

And using computer for movie playback has the advantage that unlike in a BD player, you can do whatever you want with the image during playback and MPC-HC is one of the best programs for it - youc can zoom it in or out in small increments [num1] [num9], stretch/unstretch the aspect ratio in small increments[num4],[num6],[num8],[num2] shift the image up or down [ctrl]+[num8],[ctrl]+[num2] and left or right [ctrl]+[num4],[ctrl]+[num6].
And in MPC, it’s the easiest thing in the world to get rid of the black bars on a movie like this - just right click the image > video frame > touch to the windows from outside and it will zoom in so as to snap the sides of the video to the left and right edges of the window or the screen in fullscreen mode.

I use MPC-HC with MadVR too but I use Lanczos 4 taps with anti-ringing filter and debanding. Is NNEDI3 a lot better?