LOS ANGELES, Dec 24: Road-trip movies have been dominated by teenagers on wild adventures or “Hangover” style bro-mances, but Barbra Streisand and Seth Rogen are driving the genre into new territories with mother-son comedy “The Guilt Trip” to usher in the holiday season. “The Guilt Trip,” which hits US theaters this week, follows struggling novice inventor Andy (Seth Rogen), who is guilted in to bringing his mother on a work-related road-trip across the country. (agencies)