But Wales' smoking ban - introduced in 2007 - does not allow smoking on set.
Add a smoking ban, and Hurt says the chance of successful quitting is even better.
Things will get worse as a new, national smoking ban takes hold across the country.
The smoking ban in all Northern Ireland government departments came into effect on 1 January.
BBC: NEWS | UK | Northern Ireland | Doctors call for NI smoking ban
There are other countries, however, such as Germany, which have no plans for a smoking ban.
BBC: Only 27% of 29,000 people polled said they were smokers
Amanda Sandford, research manager for Action on Smoking and Health (ASH), called for a smoking ban in all public places.
Pub companies have struggled recently following the smoking ban, a fall in beer sales and poor weather.
Last year, a major drinks company blamed the smoking ban for a fall in the sales of Guinness.
BBC: NEWS | UK | Northern Ireland | One year on for Irish smoking ban
In the lead-up to the Olympics in 2008, Beijing announced a similar smoking ban and everyone completely ignored it.
But the momentum didn't continue into 2007, and a new nationwide smoking ban should drag sales down further.
They found a smoking ban increased fatal alcohol-related car accidents by 13% in a typical county containing 680, 000 people.
ECONOMIST: America's smoking bans are causing fatal accidents
But Buckley compares the situation to the public smoking ban and says people's perceptions can change, albeit very slowly.
He says that California's smoking ban was enacted to protect employees, not patrons (who can choose to boycott the bar).
AMs took evidence on whether Wales should also have an opt-out to the smoking ban for film and television productions.
Accidents in Delaware county in Pennsylvania increased by 26% after the next-door state of Delaware introduced a smoking ban in 2002.
ECONOMIST: America's smoking bans are causing fatal accidents
This may be because they are driving to bars with outdoor seating, or to bars which are not enforcing the smoking ban.
ECONOMIST: America's smoking bans are causing fatal accidents
However, Ms Collins insists that the smoking ban will have other advantages.
The smoking ban is an example of the official excess of zeal.
The prime minister has said while he supports the smoking ban in pubs and clubs, he is "more nervous" about legislating what happens in cars.
In fact, through his blog, the third-generation CEO often talks about work culture, including a no-smoking ban he imposed last year on all employees.
However, the chair of an assembly committee said the industry's call for film sets to be exempt from the smoking ban was "fundamentally morally repugnant".
But experts could not fully state the smoking ban was the cause of the change because pre-term births had started to drop before the ban.
Pub chain JD Wetherspoon said that food and drink deals helped lure customers through its doors, despite the smoking ban introduced in England a year ago.
In the latest study researchers were able to look at the rate of premature births after each phase of a smoking ban came into force in Belgium.
The study of 600, 000 births found three successive drops in babies born before 37 weeks - each occurring after a phase of a public smoking ban was introduced.
Will those vociferous and intolerant, health police who campaigned for a public smoking ban now like to take on a similar virulent campain against all of the above?
The smoking ban has been successful and people are healthier.
Doug Muzzio, a professor of public affairs at Baruch College, said the large sugary drink ban wasn't as simple as the smoking ban for the public to understand and support.
If the government doesn't want children exposed to even a whiff of smoke they will have to amend the smoking ban to allow designated smoking rooms in pubs and clubs.
These claims are accompanied by the statistics from one area or another and of course a significant drop in heart attacks just as the smoking ban becomes active in that area.
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