Harriet Andersson and Bibi Andersson made 5 films together, and the 4 rated ones average 6.78, 0.27 below their career marks. The best is Smiles of a Summer Night at 7.7.

Harriet Andersson averages 7.23, Bibi Andersson averages 6.86. Apart that suggests 7.05; together they average 6.78, a lift of −0.27.

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