Naman Ramachandran Lea Thompson (“Back to the Future”), Kevin Pollak (“The Marvelous Mrs. Maisel”), Leanne Melissa Bishop (“The Weight of Perfection”) and Aaron Ashmore (Ginny & Georgia”) will star in Penguin Pictures and Farpoint Films’ feature film “What If.” To be directed by Lindsay MacKay (“The Swearing Jar,” “Wet Bum”), the family drama made its market debut at the Toronto Film Festival. “What If” follows Marley, a woman in her forties who discovers she was part of a hospital birth mix-up.