Is Evangeline Lilly about to have an affair with a stoner who drives an ice cream truck? That's what sources say her new movie Happy Life is about, and honestly? I'm here for it. Highland Film Group has announced that the Avengers: Endgame actress has signed on star alongside Ike Barinholtz in the indie comedy, which marks the debut feature from writer-director David Stassen. Barinholtz and Stassen will produce along with Andrew Robinson and Aperture Media Productions. Filming will take place this summer. According to producers, Happy Life follows new mom Allison Beck (Lilly), who suspects her …