Even if you don’t join the Mile High Club, Delta is trying to make your (domestic) flight pleasurable. The airline announced that starting Friday it will offer free entertainment on U.S. flights longer than 90 minutes, including free movies, television, music, and video games. Delta’s perk eliminates one of the industry’s a la care moneymakers. The airline industry made $31.5 billion last year from passenger fees, including entertainment along with baggage and early-boarding privileges.