Can an acting tour de force redeem a muddled movie? Check out Leonardo DiCaprio in
The Basketball Diaries for a lesson in how it's done. At 20, DiCaprio has already won an Oscar nomination for
What's Eating Gilbert Grape, stolen scenes from Robert De Niro in
This Boy's Life and survived Sharon Stone in
The Quick and the Dead. In
Diaries, he gets his first starring role and slam-dunks the sucker to victory even when Bryan Golubuff's conventional script and Scott Kalvert's glossy direction