LAST EDITED ON 04-18-11 AT 01:57 PM (EST)Thanks for doing this, wow! The sequence of events is really chopped up as they have presented it.
In this shot I think it is important to note that Phillip is gesturing, his hand and arm are moving up and down in a chopping motion. The pointed finger for emphasis is a way of insisting on attention just as in the beginning he insisted on Francesca's attention (I think it was her) saying "Listen to me listen to me."
As for Ralph, it makes more sense that Ralph and Phillip would be at loggerheads, not as a racial thing necessarilly but because they come from vastly different worlds, more a cultural clash.