Google VR Screen to small


Im slightly new to programming and to using unity so bare with me. I’ve recently downloaded the Google VR SDK for Unity. Ive made an app which incorporates the VR SDK, built it, and put it onto my iphone. My problem is that when I use it on my iPhone the camera view appears too small and does not fit properly onto my iPhone for use with the Google Cardboard. Has anyone involved in developing VR apps had any problems with this? If so any help would be greatly appreciated!

Thanks and all the best

Im thinking there might be a script from the package that i have to add to my pre fab.