Watch 'The Gospel according to St Matthew', its made by an Italian communist, it only uses quotes from the bible.

In it he potrays Jesus not as a mythical figure, but a revolutionary like Castro or Mao who liberated his people from slavery. When you start realizing that Jesus was actually a revolutionary figure religious communism makes a bit more sense, as is very popular in Latin america.

Its not mutually exlcusive, id also read 'On the jewish question' by Marx.

Full movie: https://youtu.be/Ewzr-ioQ_9k