Domestic Box Office For May 2011
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | The Hangover Part II | $254,464,305 | 3,675 | $85,946,294 | 33.8% | 3,615 | May 26 | Sep 15 | Warner Bros. |
| 2 | Pirates of the Caribbean: On Stranger Tides | $241,071,802 | 4,164 | $90,151,958 | 37.4% | 4,155 | May 20 | Sep 29 | Walt Disney Studios Motion Pictures |
| 3 | Thor | $181,030,624 | 3,963 | $65,723,338 | 36.3% | 3,955 | May 6 | Aug 25 | Paramount Pictures |
| 4 | Bridesmaids | $169,106,725 | 2,958 | $26,247,410 | 15.5% | 2,918 | May 13 | Sep 29 | Universal Pictures |
| 5 | Kung Fu Panda 2 | $165,249,063 | 3,952 | $47,656,302 | 28.8% | 3,925 | May 26 | Sep 29 | DreamWorks |
| 6 | Midnight in Paris | $56,817,045 | 1,038 | $599,003 | 1.1% | 6 | May 20 | Mar 22 | Sony Pictures Classics |
| 7 | Something Borrowed | $39,046,489 | 2,904 | $13,945,368 | 35.7% | 2,904 | May 6 | Jul 28 | Warner Bros. |
| 8 | Jumping the Broom | $37,295,394 | 2,035 | $15,215,487 | 40.8% | 2,035 | May 6 | Jun 30 | TriStar Pictures |
| 9 | Priest | $29,137,000 | 2,864 | $14,953,664 | 51.3% | 2,864 | May 13 | Jun 23 | Screen Gems |
| 10 | The Tree of Life | $13,303,319 | 237 | $372,920 | 2.8% | 4 | May 27 | Oct 27 | Fox Searchlight Pictures |
| 11 | Everything Must Go | $2,711,643 | 245 | $791,676 | 29.2% | 218 | May 13 | Sep 15 | Roadside Attractions |
| 12 | There Be Dragons | $1,069,334 | 259 | $705,537 | 66% | 259 | May 6 | Jun 2 | The Samuel Goldwyn Company |
| 13 | The Beaver | $970,816 | 168 | $107,577 | 11.1% | 22 | May 6 | Jun 30 | Summit Entertainment |
| 14 | Hobo with a Shotgun | $703,372 | 21 | $12,046 | 1.7% | 2 | May 6 | Aug 11 | Magnolia Pictures |
| 15 | Hesher | $382,946 | 42 | $126,046 | 32.9% | 42 | May 13 | Aug 4 | Wrekin Hill Entertainment |
| 16 | The First Grader | $332,000 | 36 | $20,437 | 6.2% | 3 | May 13 | Aug 4 | National Geographic Entertainment |
| 17 | L'amour fou | $312,494 | 18 | $37,250 | 11.9% | 2 | May 13 | Jun 30 | IFC Films |
| 18 | Go for It! | $180,237 | 218 | $119,714 | 66.4% | 218 | May 13 | Jun 2 | Lionsgate |
| 19 | City of Life and Death | $122,558 | 9 | $5,610 | 4.6% | 1 | May 11 | Nov 17 | Kino International |
| 20 | 35 and Ticking | $113,794 | 6 | $29,808 | 26.2% | 6 | May 20 | Aug 14 | Image Entertainment |
| 21 | Last Night | $99,000 | 10 | $29,505 | 29.8% | 10 | May 6 | Jun 2 | Tribeca Films |
| 22 | A Beautiful Life | $66,171 | 23 | $23,605 | 35.7% | 23 | May 20 | Jun 16 | China Lion Film Distribution |
| 23 | Battle of the Brides | $64,572 | 6 | $23,612 | 36.6% | 5 | May 6 | Jun 2 | Variance Films |
| 24 | How to Live Forever | $60,630 | 4 | $3,716 | 6.1% | 1 | May 13 | Oct 13 | Variance Films |
| 25 | Pianomania | $49,852 | 6 | $2,238 | 4.5% | 1 | May 27 | Mar 8 | First Run |
| 26 | Love U... Mr. Kalakaar! | $48,557 | 13 | $38,268 | 78.8% | 13 | May 13 | May 19 | Eros Worldwide |
| 27 | Went the Day Well? | $47,214 | 1 | $7,849 | 16.6% | 1 | May 20 | Nov 17 | Rialto Pictures |
| 28 | Louder Than a Bomb | $40,000 | 4 | $2,300 | 5.8% | 1 | May 18 | Jun 16 | Balcony Releasing |
| 29 | October | $32,127 | 2 | $7,054 | 22% | 2 | May 6 | Nov 10 | New Yorker Films |
| 30 | Hey, Boo: Harper Lee and 'To Kill a Mockingbird' | $31,135 | 5 | $5,457 | 17.5% | 2 | May 13 | Aug 18 | First Run |
| 31 | The Topp Twins: Untouchable Girls 2011 Re-release | $29,316 | 5 | $2,506 | 8.5% | 1 | May 13 | Aug 21 | Argot Pictures |
| 32 | Tuesday, After Christmas | $27,813 | 2 | $6,472 | 23.3% | 1 | May 25 | Oct 6 | Lorber Films |
| 33 | Harvest | $24,657 | 4 | $5,870 | 23.8% | 1 | May 6 | Jun 9 | Monterey Media |
| 34 | Lost Bohemia | $23,584 | 2 | - | - | - | May 20 | Aug 12 | Long Shot Factory |
| 35 | Cameraman: The Life and Work of Jack Cardiff | $20,840 | 3 | $1,998 | 9.6% | 1 | May 13 | Aug 11 | Strand Releasing |
| 36 | Skateland | $19,411 | 11 | $5,254 | 27.1% | 2 | May 13 | Jun 9 | Freestyle Releasing |
| 37 | Make Believe | $19,085 | 1 | - | - | - | May 13 | Oct 20 | - |
| 38 | I'm Not Jesus Mommy | $15,005 | 3 | $5,280 | 35.2% | 3 | May 6 | Jul 14 | FilmDemic |
| 39 | Bloodworth | $12,971 | 10 | $9,612 | 74.1% | 10 | May 20 | May 26 | The Samuel Goldwyn Company |
| 40 | Vito Bonafacci | $9,570 | 1 | $3,027 | 31.6% | 1 | May 6 | - | Cavu Pictures |
| 41 | Caterpillar | $4,157 | 1 | $2,109 | 50.7% | 1 | May 6 | May 12 | Lorber Films |
| 42 | Passion Play | $3,669 | 2 | $2,100 | 57.2% | 2 | May 6 | May 12 | Image Entertainment |
| 43 | United Red Army 2011 Re-release | $2,659 | 1 | $1,161 | 43.7% | 1 | May 27 | Jun 2 | Lorber Films |
| 44 | An Invisible Sign | $1,279 | 1 | - | - | - | May 6 | - | IFC Films |
