its a biopic

A biographical picture — often shortened to biopic — is a film that dramatizes the life of an actual person or people. They differ from films “based on a true story” or “historic films” in that they attempt to comprehensively tell a person’s life story or at least the most historically important years of their lives.

Since the 1980s, biographical pictures have become increasingly popular as advancement in film technology and increases in film budgeting have allowed directors to more fully recreate historic periods. In the early 2000s, there was a flood of biographical pictures after Man on the Moon, Ali, Frida and others became widely acclaimed and awarded

Because the figures portrayed are of such historic importance, biopics are considered some of the most demanding films of actors and actresses. Will Smith and Jim Carrey both gained respect as dramatic actors after starring in biopics, Smith as Muhammad Ali in Ali and Carrey as Andy Kaufman in Man on the Moon

Traditionally biographical films focus on beloved, historically important people. However, recently some have focused on more dubious figures (The People vs. Larry Flynt, Blow, Monster etc.)

In rare cases, the subject of the film plays him or herself; Jackie Robinson in The Jackie Robinson Story; Muhammad Ali in The Greatest, Audie Murphy in To Hell and Back, Howard Stern in Private Parts.

Most biopics are dramas but some cross over into the comedy, action and other genres.

i think its called a documentary