Post-production powerhouse VTR has acquired visual effects company Machine Effects Ltd, in a deal worth just over $4m (£2m).

John Lockwood and Steve Street founded UK-based Machine Effects, which as worked on films including Elizabeth: The Golden Age, Hot Fuzz and several Harry Potter films. Services provided include pre-production, pre-visualisation and design, VFX supervision, 3D animation, matte paintings, digital grading and title design.

VTR is the holding company of the Prime Focus Group.

Namit Malhotra, Chairman of Prime Focus Group, said: 'This acquisition adds to the group's global breadth, strengthening our visual effects capabilities and helping to grow our offer. Machine is a strong brand and I am pleased that it will now be a part of the Prime Focus Group.'

Lockwood and Street will continue with the company.