if other movies are clear, then its just the movie.
1. try every HDMI port (turn the TV off between tests - just trust me on that). some TV's apply different optimisations to different ports, god knows why.
2. look for settings in the TV that might be screwing it up. turn on game mode/HTPC mode. turn off denoise, deblur, etc. write down the defaults and just fiddle with everything. (these should be independant per HDMI input, on the TV)