Broadway’s biggest shows — Clive Davis gives his verdict
6 / 10
As co-producers, Barack and Michelle Obama bring a touch of presidential prestige to the revival of David Auburn’s Pulitzer-winning Proof at the Booth. But it’s a strangely underpowered affair, a soft-spoken Don Cheadle bringing little light and shade to the role of an ailing mathematics pioneer whose depressed daughter (Ayo Edebiri) suddenly claims to have come up with a groundbreaking paper. That thinly rendered McGuffin stretches credibility to breaking point. At the performance I saw, the audience, eager to be won over, laughed and applauded at the most innocuous of lines.

