Specifically, she is interested in themes of diaspora, migration, and identity. Betty wrote and directed the fiction short Girlfriends, which was screened at the 2013 Toronto Reel Asian International Film Festival and the 2014 Reel World Film Festival. Her second film, The Home Promised, premiered at the 2014 Toronto Reel Asian International Film Festival, and is an official selection of CAAMFest 2015 in San Francisco, the 2015 American Documentary Film Festival in Palm Springs, and the 2015 Sunderland Short Film Festival in the UK.