Shared credits
Lawrence Kasdan averages 6.68, Jonathan Kasdan averages 7.20. Apart that suggests 6.94; together they average 7.05, a lift of +0.11.
Lift is the average of their films together minus the mean of their two career averages.
Dot size shows IMDb votes; lines are rolling five-film averages. Films with fewer than 1,000 votes are left out.
 Silverado | 1985 | 7.2 | 54,908 | Director, Producer, Writer | as Boy at Outpost |
 Solo: A Star Wars Story | 2018 | 6.9 | 416K | Writer | Writer |
