ShareAlden Ehrenreich (Solo) makes his directorial debut with Shadow Brother Sunday, a 14-minute short film about two brothers, one of whom is a successful actor, and the other is a struggling musician.The drama starts, and all you hear is overlapping chatter cranked up to eleven. And then comes the first shot of Cole (Ehrenreich) drinking a beer while standing alone amid a room packed with family and friends. Boasting a glazed expression and wearing a wrinkled jacket on top of a flannel, Cole looks awfully uninterested and underdressed compared to everyone else.Seconds later, Cole’s mom...…ShareAlden Ehrenreich (Solo) makes his directorial debut with Shadow Brother Sunday, a 14-minute short film about two brothers, one of whom is a successful actor, and the other is a struggling musician.The drama starts, and all you hear is overlapping chatter cranked up to eleven. And then comes the first shot of Cole (Ehrenreich) drinking a beer while standing alone amid a room packed with family and friends. Boasting a glazed expression and wearing a wrinkled jacket on top of a flannel, Cole looks awfully uninterested and underdressed compared to everyone else.Seconds later, Cole’s mom...WW…