The Thor star’s documentary about improving his mental resilience sees him trying to learn the drums. But given how dreadful he is, promising to join Ed Sheeran on stage may have been a mistake So, you know how there was once the Era of All the Chrises? Pine, Evans, Pratt, Hemsworth. And they all looked the same, especially Pratt ‘n’ Evans and Pine ‘n’ Hemsworth (plus Hemsworth had 17 brothers who also looked the same, which felt like an unnecessary layer of complication). Then Evans became Captain America and Hemsworth became Thor and that sorted things out a tad, although Pratt ran interference as Star-Lord in the Guardians of the Galaxy franchise for a bit.Anyway. Limitless is a reality-documentary sort of thing by the Hemsworth one (if you need further elucidation, he is Australian and looks like a handsome teddy bear with an unparalleled fitness regime). In the first series he investigated ways to deal with stress and shock, and how to slow the ageing process and other ills tha...