How do you make objects in the foreground move at a realistic speed separate from the background? I'm trying to learn a about background perspective and having things move as the shot pans. For instance, if a character was in a graveyard and the background was rows of graves, is there a way to set it up so that as the character moves left and right, the angles that the rows of graves line up will change too? Most importantly, how much work is something like this? Any insight however detailed is appreciated.