Protesters are planning to march over plans to turn a cinema into flats.
A developer wants to turn the Art Deco Lonsdale Cinema building into flats, which would force the cinema to close and destroy the former theatre.
A campaign group has been set up to save the building as an arts centre and keep the cinema open.
A planning meeting is being held in March to decide on the proposals and a march is due to be held in the city centre ahead of that in February.
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