Can I trial video editing in the free trial? Cant seem to import a video to give this a go. Can you please help?
Trial version does not have any such limitation.
As Akash said, there is no limitation in the trial version.
You can open a video in Photoshop either by choosing File > Open or by importing the video into an open Photoshop document by choosing Layer > Video Layers > New Video Layer from File.
If these methods are not working, the video you are importing may corrupt or a file type that is not supported by Photoshop. You can see list of supported file types at Supported file formats in Photoshop