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Shared credits
Lamar Trotti averages 6.70, Roy Roberts averages 6.44. Apart that suggests 6.57; together they average 6.40, a lift of −0.17.
Lift is the average of their films together minus the mean of their two career averages.
Dot size shows audience votes; lines are rolling five-film averages. Films below the source vote floor are left out.
| Guadalcanal Diary | 1943 | · | 22 | Writer | as Capt. Jame Cross |
| Wilson | 1944 | 5.6 | 28 | Writer | as Ike Hoover - Chief White House Butler (uncredited) |
| A Bell for Adano | 1945 | · | 14 | Producer, Writer | as WW Middleton |
| Colonel Effingham's Raid | 1946 | · | 7 | Producer | as Army Captain Rampey |
| Captain from Castile | 1947 | 7.2 | 32 | Producer, Writer | as Capt. Alvarado |
| Stars and Stripes Forever | 1952 | · | 12 | Writer, Producer | as Maj. George Porter Houston |