"It is not yet confirmed. We are still working on the details. We can see the possibilities but have to come to a decision whether it is realistic to use a Swedish location," Stærmose at Swedish firm Yellow Bird, which will work with Columbia Pictures on the Hollywood versions of Stieg Larsson's books, told The Local on Wednesday.
Stærmose explained that representatives from the US film company Columbia Pictures, which owns the rights to the English language versions of the films, have just left Sweden after a tour of possible locations.
"We have been in Stockholm and in other locations, including on the west coast. It has been a very positive experience," he said.
The manuscript is expected to be finalised in mid-June and a decision over possible locations for the film, due to commence production in the autumn, can therefore be expected sometime during the summer.
"This is set to be a very major film. It would be wonderful to film it in Sweden but we have to see if it can be managed with respect to resources, Swedish union regulations and other considerations," Søren Stærmose said.
Ingrid Rudefors at The Stockholm Film Commission told The Local on Wednesday that while the region remains confident that Stockholm is the favoured choice of the US film company, nothing has yet been confirmed.
"There is no contract. We want to wait until the manuscript is finished in mid-June before we comment on any further details - before that time no actors can be tied to the project and no final decisions can be taken," she said.
Rudefors also expressed a hope that early indications that Stockholm footage will be limited to external locations, will be expanded to also include interior scenes.
"That would generate a significantly larger project and duration, which would be really exciting," she told The Local.