I just saw this movie at the Minneapolis/Saint Paul International Film Festival, and I was blown away. Sure, someone else reviewed it as "light." I think comedy is harder than drama: drama gets attention in the way we like to gawk at car accidents; comedy only works if the filmmakers create believable human characters.
Eddy (John Howard), the father, is a bloke's bloke. He's not good at understanding his daughter, and doesn't know why it matters so much anyway. However, he loves his daughter, so he works at it. The daughter Chantelle (Alyssa McClelland) did a wonderful job as a sensitive young woman. The mother and minor characters also have real personalities and quirks.
I also had the privilege of meeting the director, who attended the screening. He is also a dentist part-time (!), and described making a film in Australia. He gets government grants, but they are very competitive. You have to have international distribution and 30% of the budget already lined up (!). He spends years on each film, and knows none of them are going to make much money unless he gets very lucky, because they don't have wide distribution or much marketing. Australians don't seem to love Australian movies (you're never a star in your home town), so not much positive feedback there. I was impressed with his fortitude. Possibly he just likes making movies.
The characters here are beautifully drawn, interesting, and, yes, funny. The director is the kind of guy I wish would succeed in this cold world. See this movie!