Is there a size chart and I don’t see an option to choose a length?

I usually wear a 1 1/2 or 2" heel with these dress pants and am a 30 or 31" leg length. Did not have to alter the length at all.

What is the inseam on this pant?

I think that it is 31" because I didn't have to adjust the pants.

how large is leg opening

Couldn't give you the exact measurements, but would say the leg opening is between a standard to slightly slim, straight leg opening. The leg opening could still accommodate wearing an ankle or mid-calf boot. The "curvy" refers more to the fit through the hip/thigh area.

Do these pants have pockets?

Yes, they have 2 side pockets and 2 hip pockets. None of the pockets are very deep and they will be sewn closed for packaging and shipping. it's very easy to take out the pocket closure stitching. I left the hip pockets closed so they would lay flat and I don't use them. I've had several pairs of these pants and I really like the fit.