I found it to very interesting. There is absolutely no tickling in it, but it is the first mainstream movie that I have seen that has portrayed an alternative (S&M) relationship in a positive way. I don't know, for some reason it gives me hope.
However, I was not all that impressed. I also don't completely agree that it portrays a BDSM relationship in a positive way. The woman (sorry I forget the characters name) had mental problems. Emotionally healthy people are involved in these types of relationships as well. You don't need to be a just released mental patient to like S&M. It did have a happy ending, I'll give it that much credit!
SIRENS starring Elle MacPherson and Hugh Grant features the famous model playing a tickling enthusiast. She only tickles other women and, in once scene, tickles the underarms of a lady who is strapped, arms up, to a post. Not bondage in the sense we know it, but hot nonetheless.
Then there's SUMMER LOVERS, where Daryl Hannah ties down her boyfriend and briefly tickles his underarms. Later in the film, she gives his torso a quick tickle.
I think they missed the boat in that movie 9to5 with Dolly Partong not tickling her boss while he was tied up. I'm more into M/F or F/F tickling but that guy had it comming. Besides who wouldn't mined a little tickle torture from Delectible Dolly?