US Release date: 23 December 1948
First Melbourne Saturday Suburban: 20 May 1950
Genre: Comedy
Country: USA
Running time: 68 minutes
Director: Edward Bernds
Cast: Penny Singleton, Arthur Lake & Larry Simms
Australian Distributor: Columbia
Melbourne Premiere Venue: Union’s Liberty theatre for two weeks from 7 April 1950 supporting Captain China.
Suburban Release Type: Union 2-L-2
Rankings
| Rank | ||
| EF Points | 35 | 316 |
| EF PPE | 2.33 | 231 |
| Metres Travelled | 154,389 | 320 |
| Average MT | 10,293 | 158 |
| Engagements | 15 | 320 |
| Slots | 24 | 310 |
| Weeks | 9 | 124 |
| Weeks as % of engagements | 60.00% | 65 |
| Saturdays | 2 | 324 |
| Sats as % of engagements | 13.33% | 327 |
| Tuesdays | 4 | 281 |
| Tues as % of engagements | 26.67% | 204 |
| First billed | 0 | 263 |
| Second billed | 15 | 170 |
| Feature only | 0 | 34* |
Independent ratios
| Engagements weeks 1-10 | 11 |
| Ratio | 73.33% |
| Difference to chain ratio | -13.34% |
| Eng weeks 11-26 | 3 |
| Ratio | 20.00% |
| Difference to chain ratio | 12.38% |
| Eng weeks 27-52 | 1 |
| Ratio | 6.67% |
| Difference to chain ratio | 0.96% |
| Hoyts eng | 0 |
| Ratio | 0.00% |
| Difference to chain ratio | -0.84% |
| Independent eng | 15 |
| Ratio | 100.00% |
| Difference to chain ratio | 22.89% |
| Suburban eng | 0 |
| Ratio | 0.00% |
| Difference to chain ratio | -22.05% |
Notes: One of three Blondie comedies to hit Melbourne suburbia in 1950, this one received a meagre number of bookings, all on the Independent circuit. Its most regular partner was Captain China, that it followed from their city engagement. Low rankings abounded including six that were 300+.
Blondie’s Secret engagements
| SUBURB | VENUE | CHAIN | DATE | W | D | B | CO-FEATURE |
| Moonee Ponds | Moonee | Independent | 20/5/50 | 1 | W | 2 | Captain China |
| West Brunswick | Western | Independent | 20/5/50 | 1 | W | 2 | Captain China |
| Middle Brighton | Dendy | Independent | 3/6/50 | 3 | W | 2 | Captain China |
| Coburg | Plaza | Independent | 3/6/50 | 3 | W | 2 | Battleground |
| Heidelberg | Orient | Independent | 10/6/50 | 4 | W | 2 | Captain China |
| Oakleigh | Plaza | Independent | 17/6/50 | 5 | S | 2 | Captain China |
| Port Melbourne | Port | Independent | 17/6/50 | 5 | W | 2 | Captain China |
| Reservoir | Plaza | Independent | 1/7/50 | 7 | T | 2 | No Orchids For Miss Blandish |
| North Melbourne | Central | Independent | 15/7/50 | 9 | T | 2 | The Dark Past |
| East Malvern | Waverley | Independent | 22/7/50 | 10 | S | 2 | We Were Strangers |
| Preston East | Gowerville | Independent | 22/7/50 | 10 | W | 2 | We Were Strangers |
| Newport | Plaza | Independent | 29/7/50 | 11 | T | 2 | Boston Blackie’s Chinese Venture |
| Williamstown | Empress | Independent | 29/7/50 | 11 | T | 2 | Boston Blackie’s Chinese Venture |
| North Carlton | Adelphi | Independent | 9/9/50 | 17 | W | 2 | The Red Danube |
| Richmond | National | Independent | 16/12/50 | 31 | W | 2 | The Asphalt Jungle |


