Domestic Box Office For March 1991
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Teenage Mutant Ninja Turtles II: The Secret of the Ooze | $78,656,813 | 2,868 | $20,030,473 | 25.5% | 2,868 | Mar 22 | - | New Line Cinema |
| 2 | New Jack City | $47,624,353 | 905 | $7,039,622 | 14.8% | 862 | Mar 8 | - | Warner Bros. |
| 3 | The Doors | $34,416,893 | 1,236 | $9,151,800 | 26.6% | 840 | Mar 1 | - | TriStar Pictures |
| 4 | The Hard Way | $25,895,485 | 1,629 | $6,301,470 | 24.3% | 1,622 | Mar 8 | - | Universal Pictures |
| 5 | Class Action | $24,277,858 | 1,132 | $4,207,923 | 17.3% | 778 | Mar 15 | - | Twentieth Century Fox |
| 6 | Defending Your Life | $16,371,128 | 715 | $92,622 | 0.6% | 3 | Mar 22 | - | Warner Bros. |
| 7 | Shipwrecked | $15,104,156 | 1,393 | $3,871,766 | 25.6% | 1,386 | Mar 1 | - | Walt Disney Studios Motion Pictures |
| 8 | The Perfect Weapon | $14,061,361 | 1,229 | $3,934,572 | 28% | 1,229 | Mar 15 | - | Paramount Pictures |
| 9 | Career Opportunities | $11,336,986 | 1,440 | $4,024,800 | 35.5% | 1,440 | Mar 29 | - | Universal Pictures |
| 10 | Guilty by Suspicion | $9,480,198 | 817 | $2,278,290 | 24% | 817 | Mar 15 | - | Warner Bros. |
| 11 | The Five Heartbeats | $8,750,400 | 862 | $1,630,689 | 18.6% | 862 | Mar 29 | - | Twentieth Century Fox |
| 12 | If Looks Could Kill | $7,788,597 | 838 | $2,246,819 | 28.8% | 838 | Mar 15 | - | Warner Bros. |
| 13 | La Femme Nikita | $5,017,971 | 118 | $44,047 | 0.9% | 2 | Mar 8 | - | The Samuel Goldwyn Company |
| 14 | My Heroes Have Always Been Cowboys | $3,603,615 | 850 | $1,361,700 | 37.8% | 850 | Mar 1 | - | The Samuel Goldwyn Company |
| 15 | Ju Dou | $1,986,433 | 39 | $10,300 | 0.5% | 1 | Mar 6 | - | Miramax |
| 16 | Mister Johnson | $1,464,242 | 43 | $11,051 | 0.8% | 1 | Mar 22 | Jul 25 | Avenue Pictures Productions |
| 17 | The Comfort of Strangers | $1,244,381 | 17 | $14,537 | 1.2% | 1 | Mar 15 | Sep 5 | Skouras Pictures |
| 18 | The Unborn | $1,159,578 | 67 | $179,080 | 15.4% | 55 | Mar 29 | Jun 13 | Concorde Pictures |
| 19 | The British Invasion Returns | $729,102 | - | - | - | - | Mar 1 | Jul 25 | Expanded Entertainment |
| 20 | True Colors | $418,807 | 9 | $59,517 | 14.2% | 6 | Mar 15 | - | Paramount Pictures |
| 21 | American Ninja 4: The Annihilation | $358,047 | 171 | $277,462 | 77.5% | 171 | Mar 8 | - | Cannon Film Distributors |
| 22 | Closet Land | $259,012 | 153 | $121,635 | 47% | 153 | Mar 6 | - | Universal Pictures |
| 23 | Open Doors | $123,470 | 6 | $15,726 | 12.7% | 2 | Mar 8 | May 23 | Orion Classics |
| 24 | Shadow of China | $55,166 | 4 | - | - | - | Mar 10 | Apr 11 | New Line Cinema |
| 25 | Robot Carnival | $10,642 | 2 | $10,642 | 100% | 2 | Mar 15 | - | Streamline Pictures |
| 26 | Scissors | $2,368 | 1 | $2,368 | 100% | 1 | Mar 22 | - | DDM Film Corporation |
