Sasha Pieterse starred in film that made its first official screening a what festival?
Sasha Pieterse: Sasha Pieterse ( ; born February 17, 1996) is a South African-born American actress and singer-songwriter. Sasha Pieterse:  In 2013, she starred in the teen comedy film "G.B.F.". G.B.F. (film): G.B.F. (Gay Best Friend) is a 2013 American teen comedy film directed by Darren Stein and produced by School Pictures, Parting Shots Media, and Logolite Entertainment. G.B.F. (film):  The film made its first official screening at the 2013 Tribeca Film Festival in April 2013 and got its theatrical release on January 17, 2014 by Vertical Entertainment.
Tribeca Film Festival