Please capitalize where necessary: the band took part of several films, like the german movie: " jazzband-it " and they recorded the signature tune for the popular olsen banden films.
A: The band took part of several films, like the German movie: " Jazzband-It " and they recorded the signature tune for the popular Olsen Banden films.

Please capitalize where necessary: we are often asked the question, "do i have to believe in the trinity to be saved?"
A: We are often asked the question, "Do I have to believe in the Trinity to be saved?"

Please capitalize where necessary: latest update : 9 march 2016 00:07
A: Latest update : 9 March 2016 00:07

Please capitalize where necessary: looking around a room of players with stacks that are twenty times the size of yours is not easy to fathom.
A:
Looking around a room of players with stacks that are twenty times the size of yours is not easy to fathom.