The 2018 Netflix movie The Titan does not credit any previous works as its source material. However, the movie's Wikipedia page lists Man Plus, a 1976 novel by Frederik Pohl as a "similar uncredited novel". The premises sound remarkably similar, though I have not read Man Plus. Is The Titan based on this or any other work? I'm mostly interested in finding out whether the writers/director/producers have cited other works as inspiration during interviews or elsewhere.
I've done some more digging and it seems there are at least a few who feel Man Plus and The Titan are very similar, though I haven't been able to find any citations to these claims. One such example is this blog.
Also, I just discovered this question may be a duplicate. At the very least, it is similar to this question.