
UK Release date: 9 March 1949
First Melbourne Saturday Suburban: 4 March 1950
Genre: Drama
Country: UK
Running time: 99 minutes.
Director: Henry Cass
Cast: Dulcie Gray, Michael Denison & Valentina Cortese
Australian Distributor: GBDFD
Melbourne Premiere Venue: Hoyts’ Athenaeum for three weeks from 11 November 1949 with Things Happen at Night as support.
Suburban Release Type: Hoyts 10-W-2
Rankings
| Rank | ||
| EF Points | 72 | 268 |
| EF PPE | 1.80 | 295 |
| Metres Travelled | 418,714 | 224 |
| Average MT | 10,468 | 137 |
| Engagements | 40 | 229 |
| Slots | 42 | 264 |
| Weeks | 2 | 238 |
| Weeks as % of engagements | 5.00% | 266 |
| Saturdays | 20 | 125 |
| Sats as % of engagements | 50.00% | 95 |
| Tuesdays | 18 | 115 |
| Tues as % of engagements | 45.00% | 127 |
| First billed | 3 | 209 |
| Second billed | 37 | 90 |
| Feature only | 0 | 34* |
Hoyts Ratios
| Engagements weeks 1-10 | 39 |
| Ratio | 97.50% |
| Difference to chain ratio | 5.14% |
| Eng weeks 11-26 | 1 |
| Ratio | 2.50% |
| Difference to chain ratio | -2.89% |
| Eng weeks 27-52 | 0 |
| Ratio | 0.00% |
| Difference to chain ratio | -2.24% |
| Hoyts eng | 30 |
| Ratio | 75.00% |
| Difference to chain ratio | 9.22% |
| Independent eng | 2 |
| Ratio | 5.00% |
| Difference to chain ratio | -6.50% |
| Suburban eng | 8 |
| Ratio | 20.00% |
| Difference to chain ratio | -2.72% |
Notes: Classy British drama with classical music moments was never going to pull much of an audience outside of The Athenaeum so Hoyts shunted it to the tail end Sand’s playdates. Abysmal numbers all round, including a 295th PPE ranking that was truly dire. Played wide, fast and then done for.
The Glass Mountain engagements
| SUBURB | VENUE | CHAIN | DATE | W | D | B | CO-FEATURE |
| Caulfield | Crystal Palace | Suburban | 4/3/50 | 1 | S | 2 | Sand |
| Fitzroy | Regent | Hoyts | 4/3/50 | 1 | S | 2 | Sand |
| Malvern | New | Hoyts | 4/3/50 | 1 | S | 2 | Sand |
| Port Melbourne | Eclipse | Hoyts | 4/3/50 | 1 | S | 2 | Sand |
| Richmond | Cinema | Hoyts | 4/3/50 | 1 | S | 2 | Sand |
| South Yarra | Regent | Hoyts | 4/3/50 | 1 | S | 2 | Sand |
| Albert Park | Park | Hoyts | 4/3/50 | 1 | T | 2 | Sand |
| North Fitzroy | Merri | Hoyts | 4/3/50 | 1 | T | 2 | Sand |
| Prahran | Empress | Hoyts | 4/3/50 | 1 | T | 2 | Joe Palooka Champ |
| St.Kilda | Palais | Suburban | 4/3/50 | 1 | W | 2 | Dear Wife |
| Northcote | Northcote | Suburban | 11/3/50 | 2 | S | 2 | Last Crooked Mile |
| Ascot Vale | Waratah | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Brighton | Centre | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Coburg | Grand | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Elsternwick | Renown | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Essendon | Circle | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Thornbury | Regent | Hoyts | 11/3/50 | 2 | S | 2 | Sand |
| Ascot Vale | Ascot | Suburban | 11/3/50 | 2 | T | 2 | Sand |
| Richmond | Globe | Suburban | 11/3/50 | 2 | T | 2 | Sand |
| Essendon | Plaza | Hoyts | 11/3/50 | 2 | T | 2 | Sand |
| Glenhuntly | Glenhuntly | Hoyts | 11/3/50 | 2 | T | 2 | Sand |
| Bentleigh | Bentleigh | Hoyts | 18/3/50 | 3 | S | 2 | Sand |
| Glenferrie | Palace | Hoyts | 18/3/50 | 3 | S | 2 | Sand |
| Preston | Circle | Hoyts | 18/3/50 | 3 | S | 2 | Sand |
| Balwyn | Time | Hoyts | 18/3/50 | 3 | T | 2 | Sand |
| Camberwell | Broadway | Hoyts | 18/3/50 | 3 | T | 2 | Sand |
| Carnegie | Carnegie | Hoyts | 18/3/50 | 3 | T | 2 | Sand |
| Gardiner | Regent | Hoyts | 18/3/50 | 3 | T | 2 | Sand |
| Hampton | Southern | Hoyts | 18/3/50 | 3 | T | 2 | Sand |
| Footscray | Trocadero | Hoyts | 18/3/50 | 3 | W | 2 | Sand |
| Hartwell | Regal | Suburban | 25/3/50 | 4 | S | 1 | The Crooked Way |
| Canterbury | Maling | Hoyts | 25/3/50 | 4 | S | 2 | Sand |
| Malvern | Victory | Hoyts | 25/3/50 | 4 | S | 2 | Sand |
| North Fitzroy | Palace | Suburban | 25/3/50 | 4 | T | 2 | Sand |
| Brunswick | Lygon | Hoyts | 25/3/50 | 4 | T | 2 | Sand |
| Ivanhoe | Ivanhoe | Hoyts | 25/3/50 | 4 | T | 2 | Sand |
| Williamstown | Shore | Hoyts | 1/4/50 | 5 | T | 2 | Sand |
| Oakleigh | Paramount | Independent | 8/4/50 | 6 | S | 2 | Sand |
| Elwood | Broadway | Independent | 22/4/50 | 8 | T | 1 | Sofia |
| Box Hill | Regent | Suburban | 3/6/50 | 15 | T | 1 | Daybreak |


