"breaking the convention" is correct and usable in written English.
You can use this phrase when you want to describe an action that goes against the accepted social norm, or established rules of a particular field. For example, "Harold's decision to wear a bowtie to a funeral was seen as breaking the convention."
Organizers said they also had tried to mimic the techniques of a television show, breaking the convention into blocks, each with a beginning, a middle and an end.
They have made a fuss about Jimmy Carter signing a peace petition circulated by a British tabloid and thus, they claim, breaking the convention that ex-presidents keep quiet about controversial issues.
A multipanel grid painting from 1951 in flat, bright hues shows Kelly breaking the conventions of Abstract Expressionism, treating color as figure and wall as ground.
Wollstonecraft is intentionally breaking the conventions of sentimental fiction, but exactly what her goals are in doing so is unclear.
By and large, until the Morris story broke, the Convention shows worked as planned.
The first woman to break the convention and make a mark in Indian journalism was the legendary photojournalist Homai Vyarawalla, who died last year.
But it is clear that at Camp David Mr Barak had bravely broken the convention whereby Israeli sovereignty was seen as extending for ever over every scrap of Jerusalem.
The organisation said that such a large importation for personal use might break the Convention on International Trade in Endangered Species of wild flora and fauna (Cites).
That appeared to break the convention, established since the Bank of England was given independence in 1997, that politicians refrain from commenting on the direction of monetary policy.
Benedict Cumberbatch's Hamlet was at the centre of a row last year when two newspapers, including the Times, broke the convention of not writing about it until the end of a preview period.
The government believes the first three motions, including a "fatal" one to be tabled by the Liberal Democrats, would break the convention that peers do not block financial measures.
