The romantic comedy “Faking It” uses a liberal Texas community and a high-school-age cast to present a commentary on sexual orientation, tolerance and acceptance among young people today. Karma and Amy are inseparable friends who rely on their bond for comfort and support. In fact, they are so close that, after numerous failed attempts to click with the popular crowd, they are outed as lesbians. It’s a big mistake that needs to be corrected — unless it has advantages! For Karma and Amy, being thought of as lovers means instant celebrity among their peers, and there is no way the ruse can end now. “American Idol” fans may recognize Katie Stevens, who plays Karma. Stevens was a ninth-season finalist on the singing competition.