Lone Star
At the end of Lone Star, Sam (Chris Cooper) and Pilar (Elizabeth Peña) finally learn the truth about why Buddy (Matthew McConaughey) and Mercedes (Miriam Colón) were so vehemently opposed to their relationship: the two were secretly half-siblings all along. Despite this, since Pilar cannot bear any more children, the two decide to carry on with their relationship. Yuck.
The Uninvited
The Uninvited concludes with the rather depressing truth: Anna's (Emily Browning) sister Alex (Arielle Kebbel) and mother (Maya Kemp) both died in the boathouse fire caused by none other than Anna herself. Anna, who was institutionalized after their deaths, had been hallucinating Alex the whole time. After being placed under arrest for the murders of her ex-boyfriend Matt (Jesse Moss) and her father's girlfriend Rachel (Elizabeth Banks), Anna returns to the institution.