Complex sentence: Uncle Brian from the Broc joined Rod as co-producer and also played sax, he also appeared in the video that the film company had asked Rod to produce and direct playing the sax and wearing a tutu.
Split into simpler sentences: Uncle Brian from the Broc joined Rod as co-producer and also played sax. He also appeared in the video that the film company had asked Rod to produce and direct, playing the sax and wearing a tutu.