Schaefer 's films have premiered .
Schaefer 's films won awards at festivals such as the Berlin International Film Festival and SxSW , among many others , and have been successfully released theatrically and on TV channels such as PBS , HBO and the Sundance Channel .
Schaefer 's films have premiered and won awards at festivals such as the Berlin International Film Festival and SxSW , among many others , and have been successfully released theatrically and on TV channels such as PBS , HBO and the Sundance Channel .