A North Korean documentary broadcast on Tuesday showed a limping leader Kim Jong Un as he tackles the impoverished country's "worst-ever hardships" amid the coronavirus pandemic and sanctions over its weapons programs.

Titled "The Great Year of Victory, 2021," the 110-minute film chronicled a series of achievements throughout the year including on missile development, construction and efforts to beat the pandemic.

The narrator repeatedly lauded such projects as signs of "victory" led by a noticeably thinner Kim, in line with previous such documentaries used by state media to craft a semi-divine personality cult around him.