The problem with a documentary like this is when do you end filming? I mean with something like The Beatles Anthology, it had an ending, because the band broke up, with the, George Harrison: Living in the Material World film, it had an ending, because George was dead, but Mark is alive and making new music, making a musical, and who know what else, so, when do you stop filming? A Life in Songs is a great film, but since it's release 10 years have gone by and Mark has made more albums. I still believe this film will be released, it is still scheduled for this year, so, if it is coming our this year, it would be good to see a trailer.