In the movie,
Why does Crassus become friends with Glabrus (when he was young) and Julius Caesar?
10points to first good, answer.
Answer on Quick Question about Spartacus,?
With both men because of their aristocratic connections. Crassus didn't have the bloodlines to be at the top of the aristocracy; instead he made his fortune and bought his way into the upper echelons of Roman politics. With Glabrus he had a useful tool to manipulate. With Caesar he had someone more equal to him in ability, though Caesar enjoyed both better breeding and more popularity. Luckily for Crassus, Caesar was also broke and needed money.(not depicted in the movie).