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Yes, the movie poster is available today if you have the money to waste. A 55″ 4K HDR on the wall with brightness adjusted by ambient light would be a lot cheaper and prettier. A shop with a load of eInk posters only changing every day or so saves a lot of electricity and it still works with street light or daylight when power is off.
I think the eink poster price might be comparable to a 75″ 4K HDR TV which uses a lot of power.
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