Fresh off the Cannes world premiere of “Teenage Sex and Death at Camp Miasma,” Hannah Einbinder joined Variety’s Angelique Jackson at the Kering Women in Motion Talks to discuss Jane Schoenbrun’s queer slasher, the final season of “Hacks” and the importance of speaking up for Palestine. “Camp Miasma” opened the Cannes Un Certain Regard section on Wednesday night to a six-minute standing ovation, which Einbinder called “totally surreal.” In the film, the “Hacks” Emmy winner plays Kris, an indie filmmaker who is called in to revive a cult classic horror franchise with one of its original scream queens, played by Gillian Anderson. As Einbinder and Anderson’s characters begin a relationship, “Camp Miasma” also tackles themes of sexuality, gender and desire. “I really related to Kris’ difficulty being comfortable in her body,” Einbinder said when asked why she was drawn to the role.…