I first saw this movie on cable TV back in the early '80s and taped it. I was one of the early video recorder owners and fell in love with the film and recorded it. It was titled "This Time Forever". I'm not sure why it's showing up on IMDb as "Yesterday". Regardless, I had taped it and watched it quite a few times over the years until 2004 when I lost my video collection during a move. I was so happy to find this on YouTube (as "This Time Forever". The emotions came flooding back as if it was the 1980s all over again. It is interesting to look back on this cultural aspect of the Vietnam War when some young American men opted to migrate to Canada as opposed to participating in an unpopular war. It still brought tears to my eyes.