US Release date: 3 December 1948 (re-release of 1935 film)
First Melbourne Saturday Suburban: 14 January 1950
Genre: Comedy
Country: USA
Running time: 91 minutes.
Director: Sam Wood
Cast: The Marx Brothers, Margaret Dumont
Australian Distributor: MGM
Melbourne Premiere Venue: MGM’s St. James Theatre for eight weeks beginning 7 November 1949 with Kid Glove Killer as support.
Suburban Release Type: Union 4-L-1
Rankings
| Rank | ||
| EF Points | 230 | 103 |
| EF PPE | 5.11 | 91 |
| Metres Travelled | 503,708 | 120 |
| Average MT | 11,194 | 45 |
| Engagements | 45 | 177 |
| Slots | 71 | 60 |
| Weeks | 26 | 55 |
| Weeks as % of engagements | 57.78% | 69 |
| Saturdays | 9 | 231 |
| Sats as % of engagements | 20.00% | 281 |
| Tuesdays | 10 | 177 |
| Tues as % of engagements | 22.22% | 222 |
| First billed | 29 | 140 |
| Second billed | 16 | 164 |
| Feature only | 0 | 34* |
Independent Ratios
| Engagements weeks 1-10 | 35 |
| Ratio | 77.78% |
| Difference to chain ratio | -8.89% |
| Eng weeks 11-26 | 8 |
| Ratio | 17.78% |
| Difference to chain ratio | 10.16% |
| Eng weeks 27-52 | 2 |
| Ratio | 4.44% |
| Difference to chain ratio | -1.27% |
| Hoyts eng | 0 |
| Ratio | 0.00% |
| Difference to chain ratio | -0.84% |
| Independent eng | 32 |
| Ratio | 71.11% |
| Difference to chain ratio | -6.00% |
| Suburban eng | 13 |
| Ratio | 28.89% |
| Difference to chain ratio | 6.84% |
Notes: This reissue remained an audience favourite, nabbing a number of full week slots on the way to a EF score just shy of the top 100. Usually screened alongside the noir Caught, the billing would change depending on the venue.
A Night at the Opera (RR) engagements
| SUBURB | VENUE | CHAIN | DATE | W | D | B | CO-FEATURE |
| Toorak | Village | Independent | 14/1/50 | 1 | T | 1 | Third Finger, Left Hand |
| Collingwood | Austral | Suburban | 14/1/50 | 1 | T | 1 | Caught |
| St.Kilda | Astor | Independent | 14/1/50 | 1 | W | 1 | Caught |
| St.Kilda | Palais | Suburban | 14/1/50 | 1 | W | 1 | Caught |
| Westgarth | Westgarth | Independent | 21/1/50 | 2 | S | 2 | Caught |
| Newmarket | Newmarket | Suburban | 21/1/50 | 2 | T | 2 | Caught |
| Elsternwick | Esquire | Independent | 21/1/50 | 2 | W | 1 | Ship Ahoy |
| Malvern | Embassy | Independent | 21/1/50 | 2 | W | 2 | Caught |
| Moonee Ponds | Moonee | Independent | 21/1/50 | 2 | W | 1 | Caught |
| Preston | Planet | Suburban | 21/1/50 | 2 | W | 2 | Caught |
| Essendon | Regal | Independent | 28/1/50 | 3 | T | 1 | Society Lawyer |
| East Brunswick | Liberty | Independent | 28/1/50 | 3 | W | 1 | Caught |
| Glenferrie | Glen | Independent | 28/1/50 | 3 | W | 2 | Caught |
| Hawthorn | Vogue | Independent | 28/1/50 | 3 | W | 2 | Caught |
| Balwyn | Balwyn | Suburban | 28/1/50 | 3 | W | 1 | Caught |
| Camberwell | Rivoli | Suburban | 28/1/50 | 3 | W | 2 | Caught |
| Ormond | Plaza | Suburban | 28/1/50 | 3 | W | 1 | Caught |
| Preston | St. James | Suburban | 28/1/50 | 3 | W | 2 | Caught |
| North Richmond | Victoria | Independent | 4/2/50 | 4 | S | 1 | The Life of Riley |
| Fairfield | Fairfield | Suburban | 4/2/50 | 4 | T | 1 | Caught |
| Ashburton | Civic | Independent | 4/2/50 | 4 | W | 1 | Night Train to Munich |
| Footscray | Grand | Independent | 4/2/50 | 4 | W | 2 | Caught |
| Heidelberg | Orient | Independent | 11/2/50 | 5 | S | 1 | Caught |
| Yarraville | Sun | Independent | 11/2/50 | 5 | S | 2 | Caught |
| Box Hill | Rialto | Suburban | 11/2/50 | 5 | S | 1 | Caught |
| Elwood | Broadway | Independent | 11/2/50 | 5 | T | 1 | That Wonderful Urge |
| Newport | Plaza | Independent | 11/2/50 | 5 | T | 1 | Caught |
| Williamstown | Empress | Independent | 11/2/50 | 5 | T | 1 | Caught |
| Caulfield | Camden | Independent | 18/2/50 | 6 | W | 2 | The Stratton Story |
| Oakleigh | Plaza | Independent | 18/2/50 | 6 | W | 2 | Caught |
| Port Melbourne | Port | Independent | 18/2/50 | 6 | W | 2 | Lost in a Harem |
| Albert Park | Kinema | Independent | 25/2/50 | 7 | T | 1 | Big City |
| North Melbourne | Central | Independent | 4/3/50 | 8 | W | 2 | The Stratton Story |
| Chelsea | Plaza | Independent | 11/3/50 | 9 | W | 2 | Caught |
| Reservoir | Plaza | Independent | 18/3/50 | 10 | S | 1 | Tarzan’s Magic Fountain |
| Burnley | Burnley | Independent | 1/4/50 | 12 | W | 2 | Caught |
| West Brunswick | Western | Independent | 8/4/50 | 13 | W | 1 | Caught |
| Hartwell | Regal | Suburban | 14/5/50 | 14 | T | 1 | Waterloo Bridge |
| East Malvern | Waverley | Independent | 15/4/50 | 14 | W | 1 | Caught |
| North Brighton | Gardenvale | Independent | 22/4/50 | 15 | W | 1 | Caught |
| Sandringham | Roxy | Independent | 22/4/50 | 15 | W | 1 | Caught |
| Eltham | Plaza | Suburban | 27/5/50 | 20 | S | 1 | Caught |
| North Carlton | Adelphi | Independent | 27/5/50 | 20 | W | 1 | Caught |
| South Melbourne | Empire | Suburban | 15/7/50 | 27 | S | 1 | Caught |
| Coburg West | Progress | Independent | 14/10/50 | 40 | S | 1 | Caught |
The 1950 Project 