Fifty Shades tracking only 30-40m LOL

You're quite right, which makes it an odd thing for the OP to complain about.

Something also worth considering is that even professional box office predictions is that they tend to ignore movies aimed at women.

Remember how Fifty Shades of Grey was only meant to make $60m over four days and $50m over three days:

http://deadline.com/2015/02/fifty-shades-of-grey-box-office-e-l-james-kingsman-1201371205/

The predictions were kinder to Pitch Perfect 2, with a vague "more than $50m", it would open with $79m.

http://deadline.com/2015/05/pitch-perfect-2-box-office-mad-max-fury-road-preview-1201425226/

Skipping page long posts for over a year now.

Didn't see it, but I think they had the last laugh