Robbie Coltrane and Devon Murray made 8 films together, averaging 7.83, 0.75 above their career marks. The best is Harry Potter and the Deathly Hallows: Part 2 at 8.1.

Robbie Coltrane averages 6.39, Devon Murray averages 7.77. Apart that suggests 7.08; together they average 7.83, a lift of +0.75.

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