We have just one boy at home this week so it has been fairly quiet. We went the other night to see the latest Tarzan film (The Legend of Tarzan) and enjoyed it. The state of CGI ability by this time is so great that it is difficult to resist its lure. It is well used in this film, which also has a penchant for what I assume is accurate historical background. It certainly appears to play true to the Burroughs original and has a good hero and heroine, a believable storyline and a decent villain (though he could have been worse - ie better).
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.