Cardiff-based architect Holder Mathias Alcock is producing a £650m masterplan for a film studio and leisure park in South Wales.
HMA chairman Tim Holder said the scheme's design details, which have been carefully guarded since outline planning application was sought in August this year, will be released within weeks.

The architect has drawn up plans for the development for clients Fairfield Properties and Westair Properties. These include a 141 ha film studio in a former opencast coalface near Bridgend, and a separate 339 ha movie complex, office and leisure space, hotels and a golf course at Llanilid, near the M4 between Cardiff and Bridgend.

The studios' layout will be similar to film complexes in the USA, and the developers have involved the scheme's backer, director Lord Attenborough, in the design and specification of the studios.

Rhondda Cynon Taff council is looking at proposals for the three-phase project, which is due for completion by 2006. Its planning committee expects to make a decision within three months.

Meanwhile, a planning application for an access interchange off the M4 has been lodged with Vale of Glamorgan council.

If built, the entire project would be more than one-and-a-half times the size of Pinewood Studios, west of London.