Rotate and resize video shot with smartphone

Sorry to ask a question that has been asked before, but answers I found relate to older versions of Premiere Pro.

I have version CC and am very much a newby. However I need to do something urgently (compile a batch of greetings videos for a young lady who has just had a heart transplant) so hand holding in doing this would be greatly appreciated. I'll learn more later!

I took several short clips of get well messages from her friends at the local church. I used my smartphone and held it horizontally expecting resulting video to be in landscape format which I could edit and compile as required. No problem with doing that but unfortunately the video is displayed in the correct format (in that the whole of the video field I took is shown) but it is vertical. I was able to rotate it back to horizontal via Effects Control and Rotation, but the result was a correctly orientated video but the sides were lost. In other words the video was rotated but fitted into the original sized vertical frame. Hope that makes sense!

I just need to expand the width to expose the sides of the video I took. The video is there as using the Position control I can see the missing sides but that loses me the centre.

Thanks for your help.

Ian