3D: some of us believe it to be a gimmick, while others see it as a legitimate advance in film technology that takes our movie enjoyment up to its next logical station. What you won't find us disagreeing on, however, is that everything looks better when it's taken to a 4K resolution. Sony has been busy rolling out its new 4K projectors across the US and Europe, and invited us yesterday to see Toy Story 3 in some ultra-advanced 4K 3D. Because of it having four times the resolution of the more conventional 2K stuff -- which Avatar, the big 3D (and 4D) flagship, was delivered in -- Sony's projector is able to deliver both the left- and right-eye frame on the screen at the same time, rather than having to alternate them in hummingbird fashion. That should ideally provide a more pleasurable overall experience for the viewer and ultimately pay off for the company in more people ponying up more cash for the extra goodness. So, we moseyed along to an Apollo Cinema in central London -- the chain has already installed Sony's hero 4K projectors in 11 of its venues -- and all you'll need to do is click past the break to see what we thought.