i tried to unwrap this can, but the image keeps showing half way
if you can see from the image, it doesn't complete to the bottom of the can or where i marked seam
I made a cut vertical, it looks better like this, Thanks.
Going through my object mode i reduced the Subdivision modifier to 0 level and it fits perfectly but it doesn't look smooth enough for me, view both images pay attention to the top of the can/image texture on the can & look at the modifier 
On the subdivision Surface modifier, expand advance and change boundary to Keep corners. UV Smooth should be set to Keep Boundaries. If its not then change it to Keep Boundaries.
