Drawing from some of his own experiences, in Riceboy Sleeps, writer/director Anthony Shim tells an immigrant’s tale of a Korean mother, So-Young (Choi Seung-yoon), and her son Dong-Hyun (a shared role by young Dohyun Noel Hwang and teen Ethan Hwang) attempting to build a new life in Canada after the loss of So-Young’s schizophrenic husband.  While in Canada, they’re faced with discrimination towards their race and So-Young’s meekness – both of them dealing with variations of…