I seem to remember a set of trails set up south of downtown that follows what used to be a set of train tracks. You should be able to find it crossing Chuncheng Lu just north or south of the first ring road.

From Green Lake, I'd recommend walking up the hill to Yuantong Jie. On your left is the oldest Buddhist temple in Yunnan, and on your right are side streets that will take you to one of the last old neighborhoods within the old city walls.

There's plenty of light hiking in the hills if you take a bus to Golden Temple (金殿), Bamboo Temple (筇竹寺）or Western Hill （西山）. I'd also recommend Changchong Shan (not sure of the characters there) in the north of town, just west of Longquan Lu when you get out of the second ring road.

Thanks for the update. Xin Jian She is only showing the English one in 2D. Now that I know they've got the English one at IMAX, I just might have to go again...

It's not made with sticky rice, but with long grain, which is what sets it apart from Nian Gao. From what I understand, it's made by taking steamed rice and pounding it over and over again into a gummy substance, and then kneading and shaping it.

I just went to see Avatar today, and I thought I'd give you the skinny on Kunming's IMAX and the film Avatar.

Avatar is currently playing at the new IMAX theater downtown as well as the Xin Jian She Cinema on Wenlin Jie. I'm not sure about the other theaters.

Though you can see it in its original English soundtrack, it's only available at Xin Jian She and only in 2D. That theater, as well as the IMAX, are playing only the Chinese-dubbed version in 3D.

The IMAX has apparently been having some technical difficulties, with Avatar's premier delayed by almost two hours, and the film apparently freezing and skipping. I'm not sure if they've properly fixed everything yet.

@saikyo: I used to live in that area. Though it's very central, the area is surprisingly lacking in facilities such as cheap restaurants and shops. It would be easy to commute there from the north side of town, because of all the buses and dedicated bus lanes running up and down Beijing Lu.
Crosstown from the Green Lake / Jianshe Lu area is a little bit more of a hassle, but it is, after all, a rather compact town.