Steven Spielberg's actress-director-writer daughter Destry Allyn is engaged to longtime boyfriend Genc Legrand, Allyn announced Friday on her Instagram account. She captioned two photos — one of the happy couple and the other of her engagement ring, which she's also sporting in the first photo as she gives Legrand a kiss on the cheek — by writing, "Holy cannoli, I'm engaged!!!" "I am so excited to take on life with my best friend!," she continued.