Tom Heaton and Mark Acheson made 4 films together, and the 3 rated ones average 5.73, 0.20 below their career marks. The best is I'll Be Home for Christmas at 6.0.

Tom Heaton averages 6.07, Mark Acheson averages 5.80. Apart that suggests 5.94; together they average 5.73, a lift of −0.20.

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