Principal Large Format is a production company dedicated to developing and producing: Giant Screen (IMAX) features, Theatrical Documentary features and Attractions. PLF was founded in 1998 by present CEO Phil Streather.

Phil is currently in development on a giant-screen IMAX film, with Paul Allen's Vulcan Productions, on a film about the big ocean issues, called
Ocean 3D.

Throughout 2012 Phil was a consultant to BBC World Wide’s natural history super brand BBC Earth. In his capacity of Director of Giant Screen and Museum Films he advised on all aspects of their move into the Giant Screen 3D business. At the same time Phil started working with the BBC Natural History Unit as Stereoscopic Supervisor on the ground breaking
Tiny Giants 3D, which delivered in 2014. Tiny Giants 3D won the Best Immersive Award at the Jackson Hole Wildlife Film Festival in 2015.

In 2011 Phil produced
Madam Butterfly 3D from the Royal Opera House (presented by RealD and Royal Opera House), which played in UK cinemas March 2012.

In 2010 Phil produced
Carmen in 3D from the Royal Opera House (presented by RealD and Royal Opera House), which played in 1500 3D cinemas worldwide in Spring 2011. In the same year Phil was 3D producer and stereographer on Meerkats 3D, produced by Oxford Scientific Films in association with PLF, for National Geographic Channels/Sky 3D, which aired on Sky 3D October 2011.

In 2009, in association with Centre Screen Productions of Manchester, Phil produced the groundbreaking 3D film for the Merlin Entertainments London Eye 4D Experience, now seen by over 15 million visitors. In 2008 PLF bought the UK’s first P+S Technik 3D mirror rig for 3D HD capture and produced elements of the 2008 Sky 3D TV proof of concept, particularly

In 2003 PLF also produced the 3D film elements for the successful touring version of Andrew Lloyd Webber’s musical
Starlight Express. His 2003 IMAX film, Bugs! 3D, narrated by Judi Dench, has won many awards, including the prestigious Panda Award for Best Large Format Film at the Bristol Wildscreen Film Festival and the Best Special Venue Program award at Jackson Hole 2009 for the Digital 25 minute version. Bugs! was a Semi-Finalist in the Documentary Short Subject category of the 2004 Academy Awards® Competition.

In 1999 Phil was the Individual Producer on the groundbreaking IMAX 2D drama,
Legend of Loch Lomond, for Dunbartonshire Enterprise, Scotland and in 1997/8 Phil produced Wildfire - feel the heat, in IMAX 2D, for Discovery Channel Pictures.

Phil regularly chairs/produces/participates in panels, sessions and master classes on 3D at industry conferences such as: NAB, IBC, Jackson Hole Wildlife Film Festival, Wildscreen Film Festival and the Edinburgh International Film Festival. In January 2011 Phil ran the National 3D Training Programme at BAFTA/Twickenham Studios, funded by Skillset and Sky and a regional Skillset programme in Bristol in February 2012 (

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