The Inhabited Island (2008)
The film is set in the year 2157, following the exploits of a young
earthling named Maksim who unexpectedly crash lands on an uncharted
yet fully populated planet.
Maksim, now a stranger in a strange land, must figure out how to
survive in this hostile new world while simultaneously bringing about
a revolution against an oppressive government that controls its
citizens by use of an elaborate form of mind control.
It's odd but most of the reviews I've read don't mention the "hollowness'' of the planet (shown in the first pic). Some details from the book the movie was based on:
The protagonist, Maxim Kammerer, is stranded on the world of Saraksh
where the atmosphere has such an enormous refraction index that the
horizon seems to bend upwards.
Here's a bit more on that:
Saraksh's skyline must look really bizarre to a Terran. The
atmosphere's chemical composition results in total lack of clear
skies, and somehow distorts optics to the point where the planet's
surface appears concave instead of convex, making it seem as if the
planet is actually the interior of a giant bubble.
~ Posters from IMP Awards and IMDb; Stills from SCIFI-Movies
Watch one of the trailers to confirm. There's also an English-dubbed promo.
Note: "The Inhabited Island" is actually a two-parter. More details on the second half here and here.