I Give It a Year has taken less than a week to top the Australian box office.
The UK rom-com starring Australians Rose Byrne and Simon Baker debuted at No.1, taking in nearly $1.4 million nationally over the weekend.
The 97-minute film examines the trials and tribulations of a couple during their first year of marriage.
Byrne plays the role of the newly-wed wife, while Baker dons the role of a business colleague who muddies the marital waters when he enters the picture.
Meanwhile, Silver Linings Playbook has risen to second place on the first weekend since Jennifer Lawrence won the Oscar for best actress for her role in the film.
Side Effects, perhaps the final big-screen movie by director Steven Soderbergh, has debuted at No.3.
The plot centres on a young woman whose world falls apart when her psychiatrist prescribes a drug that has unintended side effects.
Last week's No.1, Beautiful Creatures, has not shown much staying power, slipping to fifth in its second week of release.
It's the story of a man who escapes to a small town in the Southern US, where he meets a girl and they proceed to uncover secrets about their respective families.
Safe Haven has also dropped precipitously, from second to seventh, while newcomer Cloud Atlas had debuted at No.10.
Meanwhile, the publicity value of winning the Academy Award for best picture has been demonstrated by Argo.
The movie, based on a true story of six American hostages who were spirited out of revolutionary Iran in 1980, has risen from 18th to 13th.
TOP 10 AT THE AUSTRALIAN BOX OFFICE THIS WEEKEND (FEB 28-MARCH 3):
1. I Give It a Year - $1.395 million (Eone/Hopscotch)
2. Silver Linings Playbook - $1.045 million (Roadshow)
3. Side Effects - $841,279 (Roadshow)
4. Hansel & Gretel: Witch Hunters - $709,853 (Paramount)
5. Beautiful Creatures - $680,791 (Roadshow)
6. Lincoln - $677,459 (Fox)
7. Safe Haven - $621,282 (Roadshow)
8. Django Unchained - $568,471 (Sony Pictures)
9. The Last Stand - $374,497 (Roadshow)
10. Cloud Atlas - $355,007 (Warner Bros)