Throughout Brian DiPalma's 1983 classic, Scarface, Tony Montana has an odd relationship with his sister Gina. His attitude toward her ranges from overprotective to jealous to generous, and just about any conceivable emotion in between.
At those moments when Tony's jealousy and overprotective nature are exposed (seeing Gina go into the bathroom with a guy, when he shoots Manny, etc.), it appears that Tony has passionate feelings for his sister stronger than two siblings should share.
Simply put: is Tony in love with his sister, Gina?