Bill Kenwright and Ian McKellen made 2 films together, and the 1 rated one averages 5.79, 0.54 below their career marks. The best is The Critic at 5.8.

Bill Kenwright averages 6.13, Ian McKellen averages 6.52. Apart that suggests 6.32; together they average 5.79, a lift of −0.54.

Lift is the average of their films together minus the mean of their two career averages.